THe car starts great on cold or on hot doesn't misfires nothing out of the ordinary but the check engine light is on i reset codes but they come back the codes are the following

2-1-2= HO2S signal absent or faulty
2-3-2= Adaptive Fuel trim too lean or to rich at idling


Any Ideas on what should it be done the car runs perfect just think it the MPG is low espendin do much gas any info would be appreciate it... thanks in advanced

 

Check the O2 sensor.

 

Agreed you can check it with a volt meter.
The vacuum leak code is very common.

 

OK so how many volts its normal for The O2 What should it read should I just disconecct the O2 plug and put the voltimeter and does the engine needs to be turn on and what do you mean by the vacuum leak i know how to work on this cars but not an expert can u be more specififc please... its jjust that i want the car in perfect condition for my girlfriend and she is picky when she see a Chek engine light on... thanks in advanced

 

The 232 is a long term fuel trim code. Which is a vacuum leak. Check all vacuum hoses and spray around the intake manifold with the car running. If the idle changes the intake gasket is leaking.

To test the O2 sensor find the single wire on the firewall on the passenger side. There should be 3 wires total. 2 wires in one plug and 1 in a seperate plug. Slide the boot back on the single wire and connect the positive lead from the meter on the terminal. Then ground the other side. Then start the car is should sweep from 0 to 1 volt I believe but it should sweep all the time.

Check those and let us know.

 

Correction it is between 0 and 12 volts if you unplug the wire it should show 5 volts.

 

Ok tech the 02 sensor is giving from .5 to .6 volts steady it must be good the sensor. going to the code 232 the vacuum leak i couldn find any rarety or accelaration on the engine maybe i didnt do it right. my neighbor recommend me take out the o2 sensor and clean it with carbureator clenaer as to the vacuum leak i will continue on finding is there is a leak im going to erase a code after i take off and clean the o2 sensor and inspect again a vacuum leak what do you think another suggestion????

 

Cleaning the O2 sensor might do it.
Also reset the codes and see what happens.
I just realized you are local to me. How funny is that?

 

Actually i moved back to Puerto Rico Where Im from I sold a 940 that i had there in orlando. So Im gonna do that. what if the light comes on again what do you recommend Tech.

 

See what code comes back first.
Then take it from there. Worse case the O2 might be bad.

 

Ok thanks tech.....