check engine
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check engine
had the dreaded check engine light come on on sun nite, read the fault codes and it came up with 23 (mass air flow sens) 32 (O2 sens) and 22 (knock sens) in that order is this going to be a def change all sensors cause im thinking that could be quite expensive glad for any help in advance
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Bit more history needed, were all the codes cleared before so these are definatley all just set?
Did you only get one MIL/CEl event, so they are related
If the answer to both is yes, its sounds more like a loom problem on a common wire (sensor ground or 5V feed) , not a sensor problem at all!
Simon
Did you only get one MIL/CEl event, so they are related
If the answer to both is yes, its sounds more like a loom problem on a common wire (sensor ground or 5V feed) , not a sensor problem at all!
Simon
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What car is it, Hows the car acting/driving??
Could try a ECU reset, iirc the ECU stores codes so is poss you could be reading old faults
JollyGreenMonster.co.uk
hth
Could try a ECU reset, iirc the ECU stores codes so is poss you could be reading old faults
JollyGreenMonster.co.uk
hth
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nah ive had the check engine light apper quickly a couple of times in the past but seen as i dont drive it that often only just got round to reading the codes i know it absolutly stinks of fuel sometimes (guessing lamda making it over fuel)
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A dodgy maf will set all these codes off! maf knackerd will cause the car fueling to **** up which the lambda sensor will pick up and the fueling problem will cause the engine to det and the knock sensor will pick it up
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As above.
Faulty MAF will knacker an O2 sensor causing overfuelling and knock activity.
Reset ECU and see what codes come up. If they all come up again, change MAF and reset again, chances are though, the O2 sensor will be shot.
After you change the MAF, if the car drives badly and is hesitant, unplug the O2 sensor and try that. It should revert to default settings if unplugged.
Faulty MAF will knacker an O2 sensor causing overfuelling and knock activity.
Reset ECU and see what codes come up. If they all come up again, change MAF and reset again, chances are though, the O2 sensor will be shot.
After you change the MAF, if the car drives badly and is hesitant, unplug the O2 sensor and try that. It should revert to default settings if unplugged.
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right all ive changed the lambda sens and the maf sens tried clearing the fault codes and i cant do it to save my life lol whats the secret? i plugg the green connectors togeather and the black ones and then drive it but the CEL just keeps flashing the fault codes at me
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