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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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740 fault code 2-3-2Views : 2333 Replies : 2Users Viewing This Thread : |
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Jul 13th, 2002, 13:16 | #1 |
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740 fault code 2-3-2
I have a 1990 740 auto with B230F engine and LH-Jetronic fuel injection. The tickover is slow (400 - 600 rpm) and the fault code is 2-3-2, adaptive lambda control lean or rich-idle. I have changed the air filter but with no result. The fault doesnt seem to be in the sensor because I assume it would show up as a fault at normal running as well. Any ideas? regards Romar
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Jul 14th, 2002, 00:31 | #2 |
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Last Online: Apr 10th, 2014 00:01
Join Date: Feb 2002
Location: Tonyrefail
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RE: 740 fault code 2-3-2
If the car drives OK then my code list suggests fuel pressure is too high or you have a leaky injector. The sensor is picking this up and would seem to be OK.
All the best, Peter. |
Jul 20th, 2002, 21:00 | #3 |
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RE: 740 fault code 2-3-2
Peter, Thanks for your help. I tested the fuel presure and injectors but no luck. Your advice set me thinking so I performed a functional test and got a code 3-3-3 instead of 3-3-2 when dropping back from full throttle open. Assuming that this had to be some sort of problem indicator I pulled down the idle switch cleaned it and the multiplug up with WD40, put it back and re-set, Bingo the revs are back where they should be.(On the other hand it could have been down to the shouting and swearing) Again many thanks for your reply
Regards Romar |
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