05-05-2013, 06:48 AM
yes, some shops have a heart.
at many , they can not returned to stock , electrical parts to stock , once used!
so, some shops, make a simple black box. with $3 in parts 3 wires. (can draw a schematic , in 5min) but is just 2 parts inside, make
can emulate 3 parts, MAP/ MAF and TPS.
We connect it, and satisfy the ECU, if the rich condition goes away, then we know the MAF is bad.
sure beats , throwing $300 bills at it.... or charging a customers a huge fee for a part not needed.
in your case we dial up 2v, at idle. if AFR is normal (and goes to closed loop) if it hits closed loop ,we know the MAF was bad. just at idle. IF not, there are multi-failures.
As these car age, finding good used MAF, will be harder and harder to find, in fact , consider finding a 2nd good one, I would. Like an insurance policy, and may rise in value with age. (shelved)
at many , they can not returned to stock , electrical parts to stock , once used!
so, some shops, make a simple black box. with $3 in parts 3 wires. (can draw a schematic , in 5min) but is just 2 parts inside, make
can emulate 3 parts, MAP/ MAF and TPS.
We connect it, and satisfy the ECU, if the rich condition goes away, then we know the MAF is bad.
sure beats , throwing $300 bills at it.... or charging a customers a huge fee for a part not needed.
in your case we dial up 2v, at idle. if AFR is normal (and goes to closed loop) if it hits closed loop ,we know the MAF was bad. just at idle. IF not, there are multi-failures.
As these car age, finding good used MAF, will be harder and harder to find, in fact , consider finding a 2nd good one, I would. Like an insurance policy, and may rise in value with age. (shelved)
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