M42 idle problems when cold

[jntar]

Was it a problem when cold ?

I can't answer that. I live in the southern US and don't see sub zero temps.

[oldmann]

Injectors are fine i cleaned them out they inject umbrellas out of them so not worried about that . Behind the oil filter housing there is a oil pressure switch which is also replaced does anybody have a better than taking the maf
Apart and adjusting the air valve to open more because the cars should be between 800-900 not 1000 and up . If i could i would move down south.

There are 2 coolant temp. sensors, one behind the oil filter housing on the block (sends info to ECU) 1 under intake manifold for temp. guage.

Intake air sensor operation can be checked independent of other MAF functions.

No magic bullet to fix this, get your meter, and Bentley out and test sensors.

You can smell it running rich? FPR working correctly? TPS doing its thing?

[awsomebmw]

1222 lambda control 1This code is stored when the DME detects excessive deviations in the air-fuel mixture (too rich or too lean) for longer than 10 seconds. Possible causes: Fuel tank ran empty, Incorrect Fuel Pressure, Injector valve defective or coked, Engine Temperature Sensor defective, Secondary air leak, Fuel evaporation control system defective, Air Flow Meter defective and/or the combustion is being disturbed by mechanical failure (Spark plugs,, compression, intake/exhaust valves, ...etc.)

[awsomebmw]

Update on e30 when i was done my shift at the shoplife lol i pulled my car in when it had the problem again and i plugged it in the computer codes were o2sensor and maf sensor so anyways same thing like last time to me if it would be a problem it would happen all the time so i did vacuum test again no leaks and i got couple work buds to look for smoke aswell beside the tiny bit from cap and dipstick no leaks so i looked at voltage when i started the car for the coolant temp sensor 3.5 volts as the car warmed up it went down to below 1 which is normal less and more resistance will differ the voltage so i replaced it anyways it hasnt been cold after i did this so i will let you guys tommorow in the morning it should be pretty cold in th-20