High Idle when hot - low power on up hill

[fixkick]

that maf has no name, so what you bought ,is unknown,

this one , is bad, never seen one (or heard of) work right yet,
http://www.fixkick.com/sensors/china-maf...d-maf.html

this one, was sold new, and was never tested (final test) in the China factory.
reverse engineered it, and found that it was wired backwards
i corrected that error (gross) and it then had output.
but was not correct. at all speeds. (air flows)

some of the parts in side have no business inside any car. (ok for toys or science class experiments)

the only source of good mafs, i know, (beside real ones used) is at cardone

Click IN THAT LINK ABOVE, 92-95 example (see there full catalog, they are top grader rebuilder here)

good luck.

is your O2 sensor newer that 100,000 miles?

The 2 sensors that I touched during the isuue with the high idle (becides the ISC) is the MAF and the TPS.
About the TPS, first time that I removed it I didn't knew that when I put it back I will need to tune it... But finally I checked that it working and tuned it up when I put it back on.
About the MAF , when I removed the MAF - the inner part of the sensor was very dirty inside... So I started to clean it and when I cleaned it broke the small part inside the MAF that sticks at the middle ... I immediatelly glewed it back BUT I noticed that the angle that I glew it back is slight different from the angle that was before I broke it... Anyway I put it back on and the car was running same as before ... But for any case I ordered another chineese MAF from the internet - its not original but the car working with it at this time... And because it is Chineese - I think it will be good Idea to test its output...

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low power.?
if engine is ok
and spark ok
it's fueling !
(fuel pressure tests)
MAF tests.

here is my combined MAF plots, (engine had bad thermostat, takes for ever to warm up) lit blue line....
OBD2 SCANs with logging turned on.,... then Excel plotted at home.



the humps are me driving and shifting the 5peed.
the maf must go fully high, or power will be very low.
see how it tracks, TP throttle angles (lagged).
and vss (speed)
The MAF is the heart of this EFI system.. (the ECU measures air flow, and adds fuel to match it)

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the usa maf is
13800-58B00 (stamped on side clear) the hot wire sensor.

there is another MAF , used in some countries, i call it the plunger, (not hot wire) 13800-57B00 (it's really an AIR meter, not a MAF more like the AIR VANE types)

more facts on maf here
http://www.fixkick.com/buy-parts.html#MAF16