would a bad Cylinder Head Temperature Sensor cause the same problem as a def maf. i ran codes and got a def chts, and not a def mas.

test both

MAF.

how would u test the chts

Use the FSM

and if dont have one . mr.non answer man. for some who answers post so fast with non answers u must know it all!

download the FSM for free from any of a number of sites. Search, google is your friend. Saying you don't have the FSM is no excuse when its readily available all over the net.

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1985 300ZX n/a

See my Z project



Edited 1 time(s). Last edit was august 11, 07:51am.

When my MAF went it behaved just as you describe.

CHTS 99% of the time does not cause this. Extremely misleading and annoying. Check the wires going to the MAF, then replace with a good known one.



Edited 1 time(s). Last edit was august 12, 01:53am.

thanks 4 the directions.

so today i go to run the codes again , but 1st i try to see if the problem still exists, lo and behold all is well , codes 23 a/c and 31 ing switch.but the car runs like a bat out of hell and rips threw all gears up to 85 mph .wtf no more 2100k and out! any sugg3estions are greatly app

I have no idea what you are saying.

As above.

sorry , let me try to restate. yesterday i ran the codes in the morning and i had a no chts code ,just a 23 code -a/c, and 31 code ing switch . the rpms did not stop at 2100 andthe car ran great. is it possible that maf has a swinging trouble, iam @ aloss on which way to goand looking for some guidance. thanks

It could be bad wiring, corrosion at the AFM harness connection, or an intake leak.

hmmm , thanks ill chk.

Did you find your problem yet?

no and its back

DID YOU REPLACE THE MAF??????????

Or do any testing for that matter?