code 232 fuel lean volvo 940

Old 10-25-2012, 07:12 PM
Junior Member
Thread Starter
Join Date: Oct 2012
Location: Holden, MA
Posts: 3
Default code 232 fuel lean volvo 940

I got the car a week or two ago, on the drive home the light came on, showed as a 232. Engine running lean so I threw an O2 sensor in it seemed to run alittle better and the light went out. I cleared the codes, now the code is back and the light is off???? and the car is running like crap. power seems low, mileage around 20mpg on the highway, motor sounds cammed at idle and the motor is shaking alot. The car needs the front pipe replaced, I don't know if that could screw with anything. I checked around and this code seems to be like it could be alot of things, any places to check or test first. The car has 165k on
Old 10-26-2012, 07:30 AM
Senior Member
Join Date: Jan 2006
Posts: 1,391

When you say that it needs the "front pipe" replaced, do you mean the pipe upstream of the cat? If so, any exhaust leaks upstream of the oxygen sensor will cause the ECU to think the engine is running lean and will try to enrich the fuel mixture and lead to poor mileage. I would fix this asap.

I'm doubt that this is causing issues like your engine shaking and poor idle. For this, start with the basic tune up. Spark plugs, spark plug wires, distributer cap & rotor. Clean the throttle body with some carb cleaner and make sure the throttle closes entirely (you should hear a faint click from the throttle position sensor when the throttle is closed). Also, check the accordian hose leading to the throttle body for leaks.

Just your basics in getting the car to reliable running condition. If you still have codes after that, then chase from there.

Good luck
Old 10-26-2012, 07:55 AM
Junior Member
Thread Starter
Join Date: Oct 2012
Location: Holden, MA
Posts: 3

Most of the tune up things have been done, I do mean the pipe from the cat to the header, I just got that in and will be putting it in this weekend, I will check around for any intake leaks too
-thanks Gregg
Related Topics
Thread Starter
Last Post
Volvo 850
10-11-2007 05:45 PM
Volvo 850
07-27-2007 10:36 PM
Volvo 240, 740 & 940
01-15-2007 09:23 PM
oscar moncada
Volvo 240, 740 & 940
03-19-2006 09:00 PM

Thread Tools
Search this Thread
Quick Reply: code 232 fuel lean volvo 940

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.