that old maf is toast, 34s nail that.
the new one ,we need a 3 point reading, keyon/idle./3000 rpm volts on maf output.
maybe yours is wired wrong just like mine( gorkys.)
and if so. can be fixed easy. i can show you.
or you can have mine (gorkys with his blessings)
the china maf does have potential. but i dont have a car to test it on.
the maf must be accurate to get AFR near 12.5:1 at WOT. not 16. or 8;1. (lean burns valve, 8 wastes fuel and heats up cat)
at cruise the ECU can tune out over 30% error, but not with foot down. (right foot , fast or deep)
on pre 96 cars the mafs are harder to diagnose. (no scan data and no P0172 like warnings).
the maf rules the roost at WOT. so must be right first.
btw , the "gorky"bad maf, showed too much air flowing at idle, (not really it was nuts) but it caused excessive fueling at ilde. real bad.
then at higher rpm it just died flat. under-reported true air flow../
it must have a linear output, 1 for 1 with throttle just like my flancy excel plot shows. above.
btw the gorky maf, out of his box, the HOT WIRE was dead, (not hot, no current.) so that is why the output was bogus. and put me on the trail to fix. it.
btw, we can make it run right. just a few tests.. no large bucket of money. ask for help buying used parts, many venders list 8v part for 16v, and rev.
the new one ,we need a 3 point reading, keyon/idle./3000 rpm volts on maf output.
maybe yours is wired wrong just like mine( gorkys.)
and if so. can be fixed easy. i can show you.
or you can have mine (gorkys with his blessings)
the china maf does have potential. but i dont have a car to test it on.
the maf must be accurate to get AFR near 12.5:1 at WOT. not 16. or 8;1. (lean burns valve, 8 wastes fuel and heats up cat)
at cruise the ECU can tune out over 30% error, but not with foot down. (right foot , fast or deep)
on pre 96 cars the mafs are harder to diagnose. (no scan data and no P0172 like warnings).
the maf rules the roost at WOT. so must be right first.
btw , the "gorky"bad maf, showed too much air flowing at idle, (not really it was nuts) but it caused excessive fueling at ilde. real bad.
then at higher rpm it just died flat. under-reported true air flow../
it must have a linear output, 1 for 1 with throttle just like my flancy excel plot shows. above.
btw the gorky maf, out of his box, the HOT WIRE was dead, (not hot, no current.) so that is why the output was bogus. and put me on the trail to fix. it.
btw, we can make it run right. just a few tests.. no large bucket of money. ask for help buying used parts, many venders list 8v part for 16v, and rev.
http://www.fixkick.com