My First RODEO? (Fuel Trims & Misfires) - Part 1
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- Опубликовано: 15 сен 2024
- Ah a classic Japanese 4x4 from the 90s!
But wait... it's made in the USA...for Izuzu...by Subaru...using GM electronics...and wears a HONDA badge?! CRAZY!!
Anyways, after a recent tune-up and maintenance, this beast isn't running quite right. Let's start digging and see if we can cure all of the issues at once :)
Enjoy!
Ivan
Made in the USA for Isuzu by Subaru using GM electronics wearing a Honda badge and is being fixed by my favourite Russian as I watch him work from Australia. How cool is that?
and diagnoses the engine from Mitsubishi
and using replacement parts from China.
And watched in Pennsylvania by a Portuguese that has been to Australia.
@@sergeyspirin4539 Mitsubishi? No. Engine is pure Isuzu.
Not really made by Subaru. Made in the Subaru Isuzu Automotive plant in Lafayette Indiana. It was a joint venture. After Isuzu left the country it became just Subaru.
While working at a Honda dealership from 2001-2006 we saw many of these coming in with bad intake manifold gaskets causing misfires and fuel trim issues.
I had flashbacks on the oxygen sensors issue, I had a customer's 96 caprice in the shop the customer replaced the engine himself, I found 3 of the o2 sensors connectors crossed it was an honest mistake because there was enough slack in the harness. What made it worse was the factory labels were gone and the wires were very dirty and slightly faded, my approach was to look at a wiring schematic and that it when I discovered the problem. I like the unplug it approach you used, definitely faster! I think that is why GM started using different connectors for upstream and downstream o2 sensors a year or two later so that you could not mix them up. Great video can't wait to see part 2!
I love techs like you. No matter what the conditions are cold, in the driveway, complicated herman munster vehicle..nomatter what you break it down, do what it takes, get it done and use your smarts to make a proper diagnosis.
I had a 1995 not the 1995.5 honda passport, it had a issue with overheating going up into the mountains or sitting in traffic. It had a lot less electronics and was a obdI system, man this thing brings back a lot of history for me lol. The even earlier model rodeo's had a bench seat up front, in south America they use them as taxis and hold like 13 people.
Owner: "I told you to rotate the tires!"
Mechanic: "Oh, I though you said rotate the oxygen sensors."
HAHA xD
Great video Ivan, I was enthralled with your thinking of the O2 sensor and your notes, great job, cant wait to see part 2!!
I recently purchased a 2001 rodeo for my oldest daughter who's 01 Altima had a blown head gasket, slipping transmission, bad wheel bearing(she purchased without having me check it out).its a super clean rodeo with 30k on a rebuilt engine...i watched the entire vid intently...so far it's a great vehicle.
Had a 97 isuzu rodeo that was bulletproof, put 155k trouble free miles on it, really hard miles. I then traded it for a 2001 isuzu rodeo and put 130k on it, also really hard miles. Wondrous machines. The 4link rear suspension of the 2nd gen rodeos rode so well and extremely easy to upgrade.
If its automatic trans be nice to it. The 4L30e is not really meant for truck based vehicles. Have the trans filters replaced and fluid topped up (about 6 quarts) every 20-30k. Do not have it flushed. Some people think it's a sealed trans, it's not. It just doesnt have a dip stick.
@@Gizmo42Rodeo This is the truth, it's best to treat any transmission this way and service it more often than the manual tells you to, if at all. As a dummy highschooler that absolutely bashed on my 2001 isuzu rodeo, that 4l30e took it and took it very well.
Not a complete loss Ivan, for you must have touched the problem and are pinning it down to some degree. When I pull an igniter (that's what Toyota calls them anyway) I have a really good look at the long shaft that goes down to the plug. Occasionally you will see a tiny black dot where the spark has burned through. Also worth looking at the plug for the telltale carbon pathway on the insulator. I have even ran an inspection camera down the plug bore and found evidence of arcing to ground before.
Ivan,
Another great video and case study - thank you! Im looking forward to part 2.
God bless
Paul (in MA)
BTW anytime I hear ISUZU all I can think of is the Joe Isuzu commericals from the 1980s.
Joe Isuzu? Never heard of that guy!
I can't wait for the "this ain't my first Rodeo" dad joke in the future
Your content is Gold.
Patience is a good thing..You do good work. Thanks for the lesson..
I've done this in the past, and when it seemed to fix the misfire, suspected repositioning the coil to another cylinder changed its position where it was possibly carbon tracking, but had to let it go at that, rather than throw a coil at it, not being a definitive diagnosis. On the house until it MIGHT come back for further testing.
I love how u show your entire process, warts & all.
Don't be discouraged, the 3.5 is finniky at least my 01 was, check the service bulletins if you haven't already, some ignition items are OEM only, chasing random misfires is a rabbit hole you don't want to dive into
I recently owned one of these. Sadly though I ended up getting rid of it. It was later discovered the reason why I was having so much trouble. It had a cracked block. I thought it was a blown head gasket. It was easily the best four-wheel drive I've ever owned. Even with a perceived blown head gasket I drove it around for at least a year. I drove from Crescent City California to Santa Cruz, then back up to Crescent City. Then from Crescent City again to Susanville, California. It's overheated plenty of times but it never failed to get me where I needed to go. that thing was like a tank it would just go anywhere I wanted it to go with very little effort. RIP, good Izusu.
Ivan, It seems like your memory card goes kaput, lots of artifacts here and there. Awesome case! Tak Derzhat'! :)
I restarted the video, now can't find any artifacts anywhere. sorry for the false alarm.
Lesson learned: change one sensor at a time, or label connectors when unplugging.
What if they were already installed wrong by the previous mechanic xD
It seems to me you would have to try really hard to screw the O2 sensors all up. I'm surprised all the harnesses even reached.
@@PineHollowAutoDiagnostics that's possible, but that's assuming both the current owner and previous owner/mechanic replaced all the sensors too.
I suspect someone replaced the transmission at some point in the past (those 4L30s are junk and way too weak for an SUV) and probably screwed up the harness when they reinstalled the trans. The engine harness on those is really flimsy and doesn't really have a definite routing like most do.
Intermittent misfires!! Argh! Been tracking one on my son's '08 Ranger, think it's a cracked coil pack; ironically, been watching a couple of Eric O's videos about intermittent misfires that pointed back to a strange ignition coil profile and ultimately carbon tracking from firing outside the cylinder. Great case study, Ivan... ready for part 2!
Passport, A co-worker of mine bought one new back in the day (90's). I believe it was Honda's first SUV.
Sensor in the right location,ok. In the wrong location, WTF! LOL 😄😄😄
New Milwaukee tool!
Woohoo, it's Isuzu time! I still have my 94 Trooper with 340K miles.
use to have a trooper only used it for hunting and fishing ,i loved it. then we had a flood no more trooper.
@@linniesmith6637 Mine was my wife's "soccer-mom" vehicle, then it made it through two teenage boy drivers (with only minor body damage), then I gave it a bit of a refresh and it's now my hunting/farm/fun 4wd. I have the model with the MUA5 5 speed manual.... and I LOVE mine, too.
Great diagnosis Ivan, some poor quality work by the previous garage though.
Thanks for sharing.
I love your videos man! Learning so much. I wish I could download your knowledge to a USB drive & plug it into my brain. It was probably a weak coil & swapping gave it a stronger connection. I bet the misfire will be back within the week showing it relocated to the new coil swap spot. Just a guess because I've replaced dozens of coils over the years
Awesome idea! The USB Ivanator! Multilingual no parts required!
Kinda rare in Manitoba Canada, but we know them as the Isuzu Rodeo. Never seen one with the Honda badge. Waiting for part 2!
Rebadged as Honda Passport in exchange for Honda Oddyssys being rebadged as Isuzu Oasis. They also rebadged Isuzu troopers as Acura SLX.
Rebadged as Honda Passport in exchange for Honda Oddyssys being rebadged as Isuzu Oasis. They also rebadged Isuzu troopers as Acura SLX.
Classic bro, its a classic. Good job bro
(1:25) - Of course it cleared up.
There's more oxygen at bottom of mountain.
The air is thin up top.
>
I had one of those. 1996 Isuzu Rodeo. I wish I had kept it. It had some minor issues, but was overall an extremely solid vehicle and well designed
1996 was the golden year for the automotive industry.
Don't ya just love when you can't recreate the issue? That's THE most aggravating thing in the world for me!
Nice find on the o2 harness cross-up! Boy did they get that thing mixed up every which way! 3 out of 4 - great odds, lol! Wonder if they had the transmission out of that, and that's just where the harness ended up afterwards. Anything is possible on a used, older vehicle. Could have been this way the past 15 years!
I'll be watching for part 2. Interesting one! Haven't seen a Passport in years. Honda also made a Passport motorcycle / scooter / moped waaaaay back in the day. When the automotive one first came out, and someone in town said they owned one, I thought they had bought a scooter - thought that was strange, LOL!! 🤣
To be certain the O2 sensors are positioned correctly check a wiring diagram of the ECM and match the wire colors for each position the the corresponding sensor. I agree with the fuel injector hypothesis. I had an oldsmobile that presented similar symptoms. The fuel injector was the problem.
I BET it's injector related problem. 16:00 It can be seen when REVING the engine on the diagnostic data.The Bank 2 Sensor 2 goes LEAN due to lack of fuel. In the same time - short term fuel trim bank 2 goes 15% rich.The B2S2 is LEAN because the CAT saved more Oxygen , due to not enough hydrocarbon to oxidize ,due to plugged injector or non firing injector.
Ivan! Your black and yellow impact driver has turned red!!! Cheers from western Canada!
Good grief Charlie Brown! I was think a baro problem until the WTF O2 sensors... Then I started thinking BFH...
Was thinking wave forms before coil swaptronics. Thinking COP secondary.. lol
I'm working on a single bank rear, dead heater... ( Playing with the new artillery...Coming soon) and watching YOU for how to use it! LOL
Looking forward to #2
OK, sure why not, I'll take a stab @ it, could be several things of course, but for sure, 2 - things are happening, did you shine the flashlight in each spark plug hole make sure you don't have any "OIL INTRUSION" , make sure your COIL is not shorting to ground,
INSPECT for damage @ the pigtail connection to the COIL,
A BAD COIL or COILS,
BAD FUEL INJECTOR, or Clogged,
Bad GAS, it has been sitting for a while? ¿ 🤔...
okay, that should be enough for now I'm getting tired and sleepy good night!! & I will wait for part # 2....
I have a 97 Isuzu Rodeo with 3.2 V6, 5spd 4x4... That little thing is an offroad sleeper. lol.. It will go anywhere you want it to. mine has over 300k miles, but it needs a timing belt now; finally.
Ouch, lessons learned!! Well, maybe it came back again after ther hot soak or lose wire or bad coil. I have a feeling that'll happen in part 2. Unbelievable about the o2 sensors in wrong spots!!
Fuel trims in freeze frame don't indicate a fueling issue, I bet it's ignition, likely tracking down the side of the spark plug, thus when you swapped coils, it will be fine for a while
Onto the next :D my guessing would start me on barometric pressure sensor testing with your description
Edit damnit that looks legit reading..
First!! Yes! Ok ok second what the heck 😂 I miss those passports not many around here in RI.
I remember when they first came out at the Honda dealer in the 90s...they are quite capable off-road! Would certainly put my Suzuki to shame haha
Pine Hollow Auto Diagnostics haha idk that Suzuki is good. You remember the Suzuki Sidekicks 😂😂 people loved them
As per oscillations in the oxygen sensors I think you still have O2S12 swapped with O2S21
I think bank 2 was running so rich that it fouled out that upstream O2 causing a sluggish response. Should clear up with more driving :)
@@PineHollowAutoDiagnostics Thank for your answer Ivan!
The coil boot on #2 was wet with oil. That can cause a spark to ground vs. the spark plug. Maybe a good idea to clean out the spark plug wells with a cloth rag and final clean up with a cloth rag and brake clean. Might not be the wiring interface, just the oil presence. Do coil to ground vs spark plug pulses show up different on scanners?
What cobbled up mess is that wiring harness that 3 O2 sensors plugs can be swapped?!!
Dan'sMeTube someone likely swapped engines. Didn't put the Harness back on correctly. I've seen some really poor work done on vehicles in 35 years of mechanic business.
I like that theory!
Ivan you're AWESOME. Do you know anyone in the southern NY or Southern CT area.
Variable Ivan. The oil in the spark plug tube?
That was not welding? it was something, just doesn't qualify as a weld.
It was bubble gum.
Your #4 boot or spark plug porcelain must have a carbon track to ground. Disturbed when you moved it.
Always look at the electrical contacts after disconnecting.
Ivan,
Super excellent amazing video man. If you're ever in Allentown , Bethlehem area let me know.
I've always loved the style of those things and I'm in the market for another work/winter vehicle. Trying to find a decent clean one from snowless/saltless area. They're so cheap, if i had a place to put them, I'd buy a couple for parts too.
They are all over the place here in Colorado. And we dont have the rust issues despite having snow.
I will forever love those 1st gen Rodeos...its too bad the frames were garbage...they are next to impossible to find nowadays here in the rust belt.
In holland it is called : opel frontera. Cheers Ivan!
Good thing it has a Isuzu motor cause toward the end of Rodeo/Passport production they used a GM V6 which a large percentage failed right on the assembly line in Lafayette, IN! Isuzu was owned by GM when Subaru had the joint venture at SIA Subaru Isuzu Automotive
Wow that's nuts
The only gm motors were the 2.8 in early ones then whatever was used in the rebadged gms after 2004. The 2.4, 2.6, 3.2, and 3.5 were all Isuzu. The 2.2 was a Deawoo.
Lots of sharing technologies etc. Everyone is doing it.
awesome vid, long time watcher of your channel ,no tech , I envy your attitude. more contruction equip. vids.
You fixed it!
So I van wants to be a COWBOY ? Hey Ivan maybe in Part 2 ? You could wear your wife's Cowboy boots, they might help, BWAHAHAHAHAHAHA.
Sir Ivan I have a question ? You said this old of a vehicle does not have a misfire counter ? I thought the Scanner counted misfires on it's own as long as it plugs into any vehicle ? So the misfire counter is in the ECM, PCM OR COMPUTER in the vehicle ? Thanks, Henry from N.E. PA.
1 min in and my guess is no problem found, need to shut down and restart to get a new air pressure sample at new altitude
Be careful swapping coils on Isuzu 3.2/3.5 engines. #6 coil on some have a shorter boot than the rest and cannot be swapped with them.
The only way I see mixing up o2 wires that bad is if the trans was out.
I'd look for a wiring repair somewhere that has all 4 sensors in a common harness. Might have gotten heater and signals messed up too.
You guessed it, Ivan! When SUVs were becoming so popular in the 80s, Honda was caught without one, so while they developed their own SUV, they 'borrowed' the Isuzu Rodeo and rebadged it.
I owned a 97 4x4 v6 rodeo, friggin bulletproof.
You need a pak of snap-on pens. They work better on my Verus Pro! Great videos Ivan!!
I have the Snap-On stylus, but they are too thin. I love my click BIC pens ;)
I am hoping it wasn't a loose coil connector, but since you felt a mild misfire with hard acceleration I think it will act up again! My initial thoughts were since it was running lean initially it must be an injector not firing as I would suspect a coil not firing the trims would have been rich, but it sounds like the fuel trims are normal since fixing the O2 sensor connector locations?
This could mean nothing, but the mounting flange on cylinder 4 coil seemed to have a lot more rust than that of cylinder 2 coil. Just a stupid observation. Is that an older coil?
Very cool car👍
Skytop Mountain always sorts out the troublemakers....
Sounds like the car has a serpentine belt issue on start up. I have the same issue with my 2012 Civic. I need to replace my Belt Tensioner because I can see alot of play on the belt.
The rodeo ho2s response looked like a 88 f-150..Now the fun part begins with all the don’t know their ass with a hole in the ground Master ass kissers eager to tell me “how it is”...Ivan you sir are a highly talented mechanic who knows his shit , the idiots who don’t will let me know
10:35 ... famous last words :-).
Ivan -- would it not have been easier to swap the O2 sensor wires at the ECM?
I don't understand how a dedicated, factory wiring harness would have enough length to be routed so wrong.
Great question. I was really surprised that any plug could reach any O2 sensor haha
it's blowing raspburys at you ha ha :-D, maybe pulling the plugs and swapping the coils cleaned a contact or gave a better fit.
i would reverse them back and see if the fault appears again.
The O2 sensors harness socket order were confusing, like it was done on purpose.
All I can tell you is, if this uses the GM V6 like the Rodeo did, stay far, far away from the #5 coil. It's special. It's different! As in, different part number. Never really understood why, I just know it whooped a whole class of us back in school. :D
They use Isuzu 3.2. But on some it #6 that has a short boot so no swapping with it.
@@Gizmo42Rodeo Oh awesome! Thank you for the clarification! It was a long time ago I came across it; I recall it being passenger side rear-most cylinder, but goodness only knows after over a decade. :]
Was the Isuzu 3.2L a joint development between Isuzu and GM, or was it all Isuzu?
@@rhkips It was all Isuzu but used some GM electrical parts. Like the EGR valve is one that's commonly used on GMs.
On to part two! Don't touch anything else till scope is connected.
haha I learned that lesson a long time ago, but thought maybe I'll try the "old school" swaptronics method, and shot myself in the foot!
Coil #4 just got tired of being stuck in the middle seat. He acted up because he knew you'd move him to an aisle-seat. Word gets around.
GREAT VIDEO, EVENTHOUGH, I DIDN'T UNDERSTAND WHAT WAS GOING ON .
Watch it again! :D
Gotta love a challenge.
:)
looked to me that the catalytic converters were not working, should be a straight line after the cats. I think.
Yeah could be...not really a concern with this one :)
Check the back of the head. There is a cam plug that leaks . Enough to cause an issue with an air leak I'm not sure.
Heads rather
(2:37) - Buddy!
Take it back up the mountain. High as you can.
Could be that the slight thinning of oxygen is somehow being amplified withing engine and causing fault.
That's my two penneth.
>
We'll take it up the mountain in Part 2 :)
Good job👍👍
Will this Rodeo Drive?
Привет Иван! Какой странный гибрид из разных производителей автомобилей.... Но сделан, вроде, качественно.
Раз уж вынул катушки 2 и 4, почему не осмотрел их внимательно на пробой? Или это осталось за кадром...
Смотрю с интересом, Денис!
Bad injector or harness. Could be a bad plug also. Waiting on the notification for part 2.
Where do you get that it's made by Subaru?????
When someone tells you they changed a lot of stuff and then things are not running right, the first thing to do is visually check they changed everything correctly.
Well visually it looked OK, but the data says otherwise!
Nice move finding the wrong connections.
Just checked rockauto...most brads offer only 1 part number for all 4 locations. So no wonder they fucked it up...they removed all 4 at the same time and then crossed the plugs.
Maybe he can have the previous guy change the spark plug wires?
HAHA he would have a hard time finding those ;)
Does the MAF rate at idle seem a bit high to you?
John P I was wondering the same. {following}
How did the sensors get plugged in wrong?? You had to re route them.. Was the engine swapped?
Good question! The history of the vehicle is not known haha
Ivan, does your D10 ever give you a low battery warning before the tool just shuts off? Mine only lasts 2 hours and shuts right off.
Hi Mike, I recently replaced the battery on my Verus. The old one wouldn't even last an hour! The new one lasts maybe 5 hours...much nicer!
@@PineHollowAutoDiagnostics Ah okay. I'll order a new one then. Thanks!
Honda Passport or Toyota? I thought they were made by Honda??
I had this Honda Isuzu ticker Motor.
Ok but lots of stuff expensive to fix happened.
I keep my Chevy's.
Thanks
In math 4 different plug 24 possible combination s being
4! = 4×3×2×1= 24
haha yes 24 possible combinations! (4!) :)
@@PineHollowAutoDiagnostics now do for 8....
I often teach people challenge them to get answer without formula.
Good
Okay, you'll get it to act up again I bet!
I'm having some kind of problem like that, maybe someone can help.. it's a 99 F-150 4.6 acts like 2 dead cylinders turned it off immediately restart and runs great new plugs ,coils, injectors , O2 sensors and cleaned maf ... it's got me stumped.
How would you go about this if the ECU does not have the ability to report that there is a misfire and on which cyllinder?
Several options. Low-tech would be unplugging/lifting coils to see if the rpm changes.
@@PineHollowAutoDiagnostics yes that would be an option if: 1. It is a dead miss, not intermittent, 2. Rear set of coils not below the intake plenum 🤦🏻♂️