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1997 4.3 s10 MAF over reporting

  • BrunoPecego
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1 year 11 months ago #63474 by BrunoPecego
1997 4.3 s10 MAF over reporting was created by BrunoPecego
 unfortunately i still have my MAF over reporting. on my 1997 4.3 s10 it is reading 9gs at idle. i cant figure out why. i couldnt find a wiring problem to the sensor so my truck is running maxed out negative trims and still runs a bit rich because my spark plugs get fouled. i even tried putting rags inside my airbox to se if the MAF reading goes down but it didnt. but it works because i get proportionate response to throttle and if i create a vacum leak it reads 4gs. 
my MAP sensor reads normal so i dont think its an exaust restriction or back pressure disturbing the air measurement at the MAF and the truck has good power. i also thought this reading the maf is getting might be related to the IAC valve but it closed properly and it idles around 600rpm where it should be. it runs great but its cant really drive it because of very poor gas mileage and sometimes the sparkplugs get fouled and its difficult to start when that happens.
i learned so much on the past two years on your channels and your mechanics program but i cant fix this. im about to take it to a shop.
if you have any ideia of what i might try to fix it my self please help. 

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