1994 940 turbo giving me codes 232 and 132
#1
1994 940 turbo giving me codes 232 and 132
Not sure exactly what these codes are I've gotten a few different answers but nothing really constant. I'm looking to figure out what these codes mean and how to fix them. My car in park the idle varies between 1k-2k fluctuating between the two after the car has warmed up. Thanks in advance for any helpful information
#2
Check out: https://www.volvoclub.org.uk/faq/EngineOBDCodes.html
232 says your idle mixture is too lean or too rich, 132 is a low battery voltage code (? are you sure this is what you have) The O2 sensor is providing the feedback for the 232 so it tends to get blamed as the "cause" but the sensor is just measuring O2 in the exhaust gas - so the real cause could be related to unmetered air entering the system or incorrect metering, fuel pressure problems (including leaking injectors or fuel rail pressure issues)
I'd start by inspecting for vacuum leaks or intake air leaks then clean the idle air valve. Next I'd clean the MAF and measure fuel pressure at the rail.
For the 132, I'd measure the battery voltage with the engine off - should be 12.6V give or take. Start the car and measure the voltage at idle - should be in the 14-14.5V range. Now throw a load on - ie high beams, blower, rear defroster, AC/DC on the stereo etc. Voltage should stay in the 13V+ range.
232 says your idle mixture is too lean or too rich, 132 is a low battery voltage code (? are you sure this is what you have) The O2 sensor is providing the feedback for the 232 so it tends to get blamed as the "cause" but the sensor is just measuring O2 in the exhaust gas - so the real cause could be related to unmetered air entering the system or incorrect metering, fuel pressure problems (including leaking injectors or fuel rail pressure issues)
I'd start by inspecting for vacuum leaks or intake air leaks then clean the idle air valve. Next I'd clean the MAF and measure fuel pressure at the rail.
For the 132, I'd measure the battery voltage with the engine off - should be 12.6V give or take. Start the car and measure the voltage at idle - should be in the 14-14.5V range. Now throw a load on - ie high beams, blower, rear defroster, AC/DC on the stereo etc. Voltage should stay in the 13V+ range.
#3
Check out: https://www.volvoclub.org.uk/faq/EngineOBDCodes.html
232 says your idle mixture is too lean or too rich, 132 is a low battery voltage code (? are you sure this is what you have) The O2 sensor is providing the feedback for the 232 so it tends to get blamed as the "cause" but the sensor is just measuring O2 in the exhaust gas - so the real cause could be related to unmetered air entering the system or incorrect metering, fuel pressure problems (including leaking injectors or fuel rail pressure issues)
I'd start by inspecting for vacuum leaks or intake air leaks then clean the idle air valve. Next I'd clean the MAF and measure fuel pressure at the rail.
For the 132, I'd measure the battery voltage with the engine off - should be 12.6V give or take. Start the car and measure the voltage at idle - should be in the 14-14.5V range. Now throw a load on - ie high beams, blower, rear defroster, AC/DC on the stereo etc. Voltage should stay in the 13V+ range.
232 says your idle mixture is too lean or too rich, 132 is a low battery voltage code (? are you sure this is what you have) The O2 sensor is providing the feedback for the 232 so it tends to get blamed as the "cause" but the sensor is just measuring O2 in the exhaust gas - so the real cause could be related to unmetered air entering the system or incorrect metering, fuel pressure problems (including leaking injectors or fuel rail pressure issues)
I'd start by inspecting for vacuum leaks or intake air leaks then clean the idle air valve. Next I'd clean the MAF and measure fuel pressure at the rail.
For the 132, I'd measure the battery voltage with the engine off - should be 12.6V give or take. Start the car and measure the voltage at idle - should be in the 14-14.5V range. Now throw a load on - ie high beams, blower, rear defroster, AC/DC on the stereo etc. Voltage should stay in the 13V+ range.
As to the orher code I'll definitely give all of those a try. I've been having a feeling that one of the injectors are leaking. That or theirs a vacuum leak. But I will go through all you've suggested and let you know what the outcome is
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mcadek
Volvo 240, 740 & 940
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02-15-2015 09:36 AM