cell 1126 & 1133
#4
Drifting
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P1126 Oxygen Sensing Adaptation, Lower Load Range, Bank 1 – Above Limit
P1133 Oxygen Sensing Adaptation, Lower Load Range, Bank 2 – Above Limit
Fuel/air mixture so lean that sensing has reached its rich threshold. What that is saying is that DME can not make the mixture rich enough - you are running too lean (too much air to fuel ratio).
Potential causes are:
– Incorrect signal from MAF sensor
– Intake air system leaking
– Fuel pressure too low
– Volume supply of fuel pump too low
– Fuel injectors fouled
I would start with the first two item. Clean the MAF and check for loose or cracked hoses.
P1133 Oxygen Sensing Adaptation, Lower Load Range, Bank 2 – Above Limit
Fuel/air mixture so lean that sensing has reached its rich threshold. What that is saying is that DME can not make the mixture rich enough - you are running too lean (too much air to fuel ratio).
Potential causes are:
– Incorrect signal from MAF sensor
– Intake air system leaking
– Fuel pressure too low
– Volume supply of fuel pump too low
– Fuel injectors fouled
I would start with the first two item. Clean the MAF and check for loose or cracked hoses.
#6
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car is a 2000 C4 manual. 65K miles. I did have a problem with a 1128 and 1130 code. I cleaned the MAF, took it through emissions and passed with flying colors. I did noticed lately that I've been getting a abs and psm light when driving hard. I think that the MAF is toast. I'm going to order a new one. Anyone knows where I can get a MAF for a good price? I'm going to clean it and check for air intake leaks in the mean time. thanks again.