Watching this video brought back memories of a stressful time. I had a high mileage Toyota that started to idle too low. No codes. I had never cleaned the throttle body, so I did using throttle body cleaner, an old toothbrush, and a rag. After I finished I immediately got a code for throttle body performance on my D8BT. I pulled it apart again with the sinking feeling that I just did something to destroy a working throttle body. It turned out there was a single thread from the rag I used that was caught between the valve and the throttle body wall near the pivot. That is all it took to get a check engine light.
I had to replace throttle body, gas pedal. That made that light come on occasionally. Finally fixed it by replacing the air intake temp sensor. I have 491 k miles on those parts.
The lightning bolt comes on randomly on my Jeep and I couldn't replicate it. I'm going to replace my throttle body and intake air temperature sensor as this issue started because I cleaned the throttle body and seafoamed the Jeep.
I'm having this same issue, but unfortunately mine is worse. It's on a 2010 Dodge Nitro. 3.7L .. I'm getting the lightning bolt on the dash, but NO codes; and it will go into limp mode. But if I just cycle the key, it all resets and goes away again. So I cleaned the throttle body to make sure-- it was quite clean, being that it's only a couple years old since the last one broke some internal gears... So I was thinking it's the accelerator pedal then. As you know, there are two potentiometers inside the accel pedal.. So I graphed them both: APP 2 is having a pulsing drop out every 3 or 4 seconds. sometimes 7 to 10 seconds.. but usually shorter intervals. It just drops out over and over.. Whether my pedal is half throttle or held to the floor, or even untouched -- I can see it drop out in every position......... So I disconnected and tossed the accel pedal aside completely: and shorted my accel wires to the signal wire (through a test light) at the connector, down at the pedal--- so that it raises on the scan tool- simulating holding full throttle: just the same as it does when I step on the pedal in normal use. and APP 2 STILL drops out in random pulses?? Even after bypassing the accel pedal completely.. So I think I may have a bad computer, unfortunately. I don't think it's a short in the wire, because it drops out in a very consistent and clean pulse. It's not like it drops and stays off for a random amount of time like a short would do. it always turns off and right back on in a very clean and predictable down pulse. just drops out............. I guess I can bring in an independent 5v reference and short it to the signal wire and see if it's the power side dropping out-- or if it's just the signal wire shorting internally and dropping out?? It's not a fun problem though. Like I said, it doesn't even trip a code-- yet it happens often enough that I can't even complete a throttle relearn-- because that drop out happens while you're waiting those few seconds during the relearn. I wish I was near you-- I'd buzz over there and let you do a video on it.. but I live in Oklahoma. :) ... I'm hoping it was only happening on those coldest days, and now if I go check it, the problem will be gone; because it was well below freezing when I messed with it; fingers crossed.
I just replaced my throttle body. Last about an hour of running then red bolt was back. I hear it might be crankshaft position sensor. Anyone tried that? 2012
I replaced my throttle sensor, computer, pedal sensor, crank shaft & oil pressure sensor just a week ago because of this light. I hit a bump today and it came back on someone please help
It did for about a month then it came back and I did another relearn and after about 2 months it came back so I installed a new aluminum throttle body and that fixed it for good. ruclips.net/video/StyvL3rs0Fg/видео.html
@@737mechanic I cleaned my throttle body and seafoamed it then this lightning bolt is now randomly showing up. Throttle relearn did not help so going to replace the throttle body as well.
What was the program you used I'm having the same issue with my 08 jeep wrangler Rubicon I cleaned the throttle body today as my jeep would not start but I had full power.
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Watching this video brought back memories of a stressful time. I had a high mileage Toyota that started to idle too low. No codes. I had never cleaned the throttle body, so I did using throttle body cleaner, an old toothbrush, and a rag. After I finished I immediately got a code for throttle body performance on my D8BT. I pulled it apart again with the sinking feeling that I just did something to destroy a working throttle body. It turned out there was a single thread from the rag I used that was caught between the valve and the throttle body wall near the pivot. That is all it took to get a check engine light.
Good stuff my guy. That tool awesome.
Nicely done!
Have had to do that a few times 👍🏻👊🏻
I had to replace throttle body, gas pedal. That made that light come on occasionally. Finally fixed it by replacing the air intake temp sensor. I have 491 k miles on those parts.
The lightning bolt comes on randomly on my Jeep and I couldn't replicate it. I'm going to replace my throttle body and intake air temperature sensor as this issue started because I cleaned the throttle body and seafoamed the Jeep.
I'm having this same issue, but unfortunately mine is worse. It's on a 2010 Dodge Nitro. 3.7L .. I'm getting the lightning bolt on the dash, but NO codes; and it will go into limp mode. But if I just cycle the key, it all resets and goes away again. So I cleaned the throttle body to make sure-- it was quite clean, being that it's only a couple years old since the last one broke some internal gears... So I was thinking it's the accelerator pedal then. As you know, there are two potentiometers inside the accel pedal.. So I graphed them both: APP 2 is having a pulsing drop out every 3 or 4 seconds. sometimes 7 to 10 seconds.. but usually shorter intervals. It just drops out over and over.. Whether my pedal is half throttle or held to the floor, or even untouched -- I can see it drop out in every position......... So I disconnected and tossed the accel pedal aside completely: and shorted my accel wires to the signal wire (through a test light) at the connector, down at the pedal--- so that it raises on the scan tool- simulating holding full throttle: just the same as it does when I step on the pedal in normal use. and APP 2 STILL drops out in random pulses?? Even after bypassing the accel pedal completely..
So I think I may have a bad computer, unfortunately. I don't think it's a short in the wire, because it drops out in a very consistent and clean pulse. It's not like it drops and stays off for a random amount of time like a short would do. it always turns off and right back on in a very clean and predictable down pulse. just drops out............. I guess I can bring in an independent 5v reference and short it to the signal wire and see if it's the power side dropping out-- or if it's just the signal wire shorting internally and dropping out?? It's not a fun problem though. Like I said, it doesn't even trip a code-- yet it happens often enough that I can't even complete a throttle relearn-- because that drop out happens while you're waiting those few seconds during the relearn.
I wish I was near you-- I'd buzz over there and let you do a video on it.. but I live in Oklahoma. :) ... I'm hoping it was only happening on those coldest days, and now if I go check it, the problem will be gone; because it was well below freezing when I messed with it; fingers crossed.
What part of Oklahoma?
@@737mechanic Enid
@@calholli I have familiy in Taloga, Seiling, and Vici.
Help me I replaced my battery and I got the engine display the throttle display and the car is not accelerating
Nice fix! Some scanners it’s ETC and some is ETS. Great job 👍🏻
I just replaced my throttle body. Last about an hour of running then red bolt was back. I hear it might be crankshaft position sensor. Anyone tried that? 2012
I replaced my throttle sensor, computer, pedal sensor, crank shaft & oil pressure sensor just a week ago because of this light. I hit a bump today and it came back on someone please help
When you say throttle sensor do you mean the throttle body?
I replaced the throttle body. No luck.
@@JayHill615 Did you do a relearn?
so did the throttle body relearn get rid of the lightning bolt error?
It did for about a month then it came back and I did another relearn and after about 2 months it came back so I installed a new aluminum throttle body and that fixed it for good.
ruclips.net/video/StyvL3rs0Fg/видео.html
@@737mechanic I cleaned my throttle body and seafoamed it then this lightning bolt is now randomly showing up. Throttle relearn did not help so going to replace the throttle body as well.
Throttle body didn't fix mine
What was the program you used I'm having the same issue with my 08 jeep wrangler Rubicon I cleaned the throttle body today as my jeep would not start but I had full power.
I used the CRP919EBT scan tool.
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