Quote:
Originally Posted by matto20v
A quick Google search told me that idle voltage is around 1.20 to 1.26v for a WRX MAF, so you might be onto something.
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My findings were similar (up to 1.4V being the highest) and I compared with data logs from my other 3 cars and they were all between 0.7V (70mm
MAF) and 1.3V (little NA engine so has a tiny
MAF) at idle.
Besides, 2V is 40% of the total air mass it can read! At idle?!? That's gotta be way off.. Except if an EGR wasn't recirculating when meant to, I can't think of anything that would actually make the intake legitimately suck more air at idle than normal.. ADM MY98 WRXs don't even have a traditional EGR system, do they?
Will disassemble the
MAF sensor to inspect solder joints etc. and make sure it's got a good ground connection and, if that doesn't help, I'll buy another.