AFM questions.

[AJ'S 88NA]

While "resistance is resistance," sometimes a circuit as a whole will provide different readings when checked in opposite directions because of the presence of things like diodes; which are current limiting devices that limit current flow in a certain direction.

Agreed, didn't know we had such things in a AFM.

 

[IndigoMKII]

If you pull the top off of the AFM you can see a diode on the board.

 

[IndigoMKII]

Bought a AFM from a member on here (Thanks Dheath) time to try it out and see how this goes.

 

[Nick M]

Bought a AFM from a member on here (Thanks Dheath) time to try it out and see how this goes.

Instead of checking Hz behind the glove box for free?

 

[IndigoMKII]

Well the AFM fixed quite a few drivability issues and it doesn't hesitate as bad under boost now. It still gets mad under boost though and backfires if you let off while its under boost.

My car doesn't pull half as hard as my friends bone stock 87 7mgte at half throttle. Slightly frustrating.

 

[1988SupraDreams]

+1 for Leak Checking

Also would like to know the specs for the other terminals on the AFM.
Mine reads as follows:
KS--->E1: Infinity
E1--->KS: 2,557,000 Ohms (2.557MOhms)
VS(VC?)--->E1: 156,900 Ohms (156.9kOhms
E1--->VC: 156,000 Ohms (156kOhms)

My IAT Sensor ohmed out good at 2,511 Ohms (2.511kOhms) at about 74 Degrees.

Throwing Code 24 and 31.
Code is intermittent, and it stalls when coming down to idle sometimes. Boosts steady at 9PSI.

 

[jake8790]

When I first bought my car it was completely worthless on boost, problems included knock sensor wiring, timing set to 0 degrees, both cats clogged, and a cracked hose off the turbo.