After getting some hesitation when accelerating in my MY98 JDM STi today I've read the ECU diagnostics and it's come back with 3 different error codes

23 - MAF Sensor

32 - Oxygen Sensor

21 - Engine Coolant Temperature Sensor

How long are these codes stored for? Is it possible some of these relate to old faults or do I really need to replace all 3 sensors?! If the latter, is it possible this is indicative of a greater problem - why would 3 sensors give up all at once?

Cheers.

 

Someone must be able to help!

 

you will not have all of those faults, one is probs causing the others.....you also can't tell on the early cars wether they are current or historic
personally first option would be to re-set the cars ECU and then once sorted (ECU cleared) take for a sensible drive and re-check to see whats stored, this will then give you current problems........

alyn

 

Read/heard early Scoobies knacker the air sensors if they have inappropriate induction kits? ie too much air??
Would guess the maf/02 sensor could be related and the coolant is incidental?
Unless its a loom fault?
I'm sure there are more knowledgeable/experienced people out there with a better idea.
Good luck

 

Cheers guys, had a chat with my local stealer and he also suggested one fault would be causing the others. Gonna have to bite the bullet and run it straight in to be looked at I think, we're supposed to be going away for Easter on Friday

The car does have an HKS induction kit fitted. Does resetting the ECU affect any remapping that's been done? If not, I'll giev that a go at lunch time today

Any further suggestions so I can go to the dealer as armed as possible? Thanks.

 

Well, I've reset the ECU and it's still reading back all 3 fault codes Any other opinions on what could be the cause?

Thanks.

 

Sorry to have missed this thread. I recently had MAF and O2 sensor fault codes. Do not change the MAF sensor first. I changed mine and still got both codes. Change the O2 sensor first and you may well clear both.

David