ive replaced the obd1 air intake temperture sensor twice and it still pops right when i start the car. ive cleaned the conectors too just dont know why it still reads as code ten
i clear it on my lap top with in a second its back what could cuase this ?
even when the car is cool its on

00 em1 built b16
p28 /s300


any ideas

 

What color wires do you have on the connector for the IAT sensor?
Are you running the old style iat sensor in the intake manifold or the em1 intake tube style sensor?

 

Have you tried using another ECU?

 

as for the style IAT it is the usuall white one that has two screw holes (obd1).
and im the connector that is black and green wires

it reads 127 degrees when warmed up but it just gives me that code



no i have not tried switching ecu's but i dont see how that code help or change unless one connector is burnt on the ecu witch it is not plus i bought this ecu from MR Vega and he's the man

 

Wrong plug...should be green and red wires normally for the IAT

 

sweet so what could i be switching with the aicv on the back of the im?
subcounsiouly i was thinking that


p.s
send me to EFI 101 and tune my car. ok back to reality

 

A common issue is switching the iacv and evap plugs...
I would find the right plug via a continuity test (pin at the ecu to pin at the connector)...

 

Hopefully it didnt burn a spot in the ecu, open it and see.

IAT
Red/grn
IACV
Yel/blk
Blk/blue or vice versa.

 

thanks for the help. if i crack open the ecu and there is a spot thats burnt can it be fixed you think?
the connector looks fine and reads good bout to open the cover

 

Look for a burnt transistor at position Q31. Replace it after fixing the wiring of the IAT and purge solenoid and you're good to go.

 

so i switched the IAT with the IACV but it wouldnt even run i checked the wiring i believe it to be correct still on the hunt

 

It isn't rocket science to figure out what wire/plug does what.

You use a multimeter with continuity testing (if you don't know what this is, google it). Then you find the IAT pin at the ecu, then find the IAT plug in the engine bay via the continuity test.

 

lol thanks for the sarcastic remark dick!
yes i have a multimeter and it is reading correct 1.5

im certain the conector is the right one also gunna pop open the ecu when ever i get out of work.

 

Stop wasting your time switching around plugs in your engine bay & use the multimeter to figure out the issue then.