FourthStreetGarage demonstrates how to use the self diagnostic feature of the Bosch LH 2.4 and LH 3.1 fuel injection systems found on late-model Volvo 240's.
A couple of follow-up details: 1) If there is more than one fault code stored in memory, they can be retrieved by re-initiating mode 1 by pushing the button 1 time after the first code has been read. The memory can hold up to 3 codes at a time. 2) In both diagnostic modes, the speed sensor can be tested even if the engine will not start. Enter diagnostic mode 2 then run the starter until the rapid flashing stops and a code is given. If rapid flashing doesn't stop there is no signal.
Excellent, wish I knew about it before I bought a throttle position sensor. who knew volvo would go into limp mode when tps came loose while driving...
Thanks, this video helped me a lot. I have a problem, by testing function number two described at minute 4.18 my led does 3-3-2 and not like yours which does 3-3-3. Could it be that the TPS is faulty?
Thanks, your 240 self diagnostic tests was most informative. Didn't understand how to perform the input tests. Now I do. That brings me to a question regarding my 92 240 wagon, 3.2 system. When testing the TPS sensor I get a code 332, not 333. Checking the idle switch gives a code 332. Any ideas? Also, re: your next batch of mead. Pasteurize the honey. There's a lot of stuff in there that can inhibit proper fermentation. Remember also that a low attenuating yeast should make for a sweeter mead than will one with high attenuation.
How do you check an 87 Volvo GLE 240 check engine light is on car sputtering and stalling out and dying when you step on gas can't find OBD1 box to check engine light search under hood and dash
The video is too blurry to see what pages in the Bentley Bible he is talking about. It would help a great deal if you would tell us what pages to go to to see what you are talking about.
Хобби
Thank you very much, I’ve had my Volvo for 7 years and I have never found any info this detailed.
Volvo dealer wanted 1300.00 to fix my Volvo. My Dad watched this and got a code and fixed my Volvo for 128.00. Thx Pal !
Your dad charged you!? lol
July 2021: I just bought a '90 240DL wagon, and this video is a great resource, thank you.
That's like discovering a gold mine in my car. Thank you very much!
Totally agree Jono!!!
A couple of follow-up details:
1) If there is more than one fault code stored in memory, they can be retrieved by re-initiating mode 1 by pushing the button 1 time after the first code has been read. The memory can hold up to 3 codes at a time.
2) In both diagnostic modes, the speed sensor can be tested even if the engine will not start. Enter diagnostic mode 2 then run the starter until the rapid flashing stops and a code is given. If rapid flashing doesn't stop there is no signal.
Great resource for 240 guys! Thanks for posting this .
Thank you! You are my hero! Expect some questions from me soon.
Just used this to fix my car, thanks.
God bless you my son.
Just what i was looking for. Thanks
Priceless ! Thank you 🙏 Fouth. Street garage
Excellent information ,very good explanation,you teach very good .Thank you so much.for your time
Awesome, keep videos coming!
Excellent, wish I knew about it before I bought a throttle position sensor. who knew volvo would go into limp mode when tps came loose while driving...
I wish you could provide written instructions in how to do it. I think you vid is great, however I can't follow it when Im working on my car
So, random question, but does this same procedure also work for the 740 gl models? If so then that is awesome!
Thanks, this video helped me a lot.
I have a problem, by testing function number two described at minute 4.18 my led does 3-3-2 and not like yours which does 3-3-3. Could it be that the TPS is faulty?
Thanks, your 240 self diagnostic tests was most informative. Didn't understand how to perform the input tests. Now I do. That brings me to a question regarding my 92 240 wagon, 3.2 system. When testing
the TPS sensor I get a code 332, not 333. Checking the idle switch gives a code 332. Any ideas? Also, re: your next batch of mead. Pasteurize the honey. There's a lot of stuff in there that can inhibit proper fermentation. Remember also that a low attenuating yeast should make for a sweeter mead than will one with high attenuation.
I got the same thing on a ‘93 2.4 wagon. May not mean anything but am interested to see if there is a difference
Same paper clip jumper on diag plug for swedish 1992-94 Saab 900 models.
How do you check an 87 Volvo GLE 240 check engine light is on car sputtering and stalling out and dying when you step on gas can't find OBD1 box to check engine light search under hood and dash
Will this work for a 940 turbo?
Can i do the same in my volvo 940 2.0 turbo?
so i did the injector test, light flashed injectors didnt pulse, the start fuel and the idle valve worked so i knw the test is working
I was excited about this until I remembered I traded the '89 in for an '88. What do we do for diagnostics on pre '89 models?
Wolfe Custom I would love to diagnose wtf is going on with my 88
My hardback Bentley has no references to the OBD-I system at all.
I change my rear diff sensor and new connector and now speedometer don't work .
can i do the same on my 1995 940 B230FK...
you can delete anny code and reset det system
2.3
Will detect a bad brake booster ?
No. Brakes are not connected to obd.
The video is too blurry to see what pages in the Bentley Bible he is talking about. It would help a great deal if you would tell us what pages to go to to see what you are talking about.
ECU will not self diagnose.
ECU Doesn't enter test mode.
These "diagnostics" are useless. My car had no error codes yet it was not starting. Cranked well but would not start due to lack of spark.
Awesome, keep videos coming!