per0781 Posted June 11, 2003 Report Posted June 11, 2003 does anyone have the part number for the IAT sensor for the 3.1L MPFI engines? I have it circled in the pic right? Quote
gmrulz4u Posted June 11, 2003 Report Posted June 11, 2003 I believe it to be: 25037357 However, it appears GM no longer sells this? Unless the NAPA site is messed-up, because it says for VIN T, OEM # is 25037357. The NAPA Echlin one is $17.49 and part #CRB22302. The AC Delco part # is: 25171651 Quote
nerfbars Posted June 12, 2003 Report Posted June 12, 2003 I just eliminated mine when I switched to using the air intake and cone filter. I just plugged a resistor into to the plug and taped it up. Supposely the resistor makes the computer think it is cold all the time and advances the timing. I dont know if I notice an improvement in power but I also dont notice and disadvantages. The resistor is probably like $.50 at Radio Shack. Just a thought! Quote
per0781 Posted June 12, 2003 Author Report Posted June 12, 2003 u did it what those little things on ebay where it "tricks" the computer but it really doesn't. The O2 sensor compensates the difference. Quote
Redfox340 Posted June 12, 2003 Report Posted June 12, 2003 I just eliminated mine when I switched to using the air intake and cone filter. You should acutally keep it. Like per0781 said, the ECM adjusts due to a fouling out oxygen sensor. For best overall drivability, you should re-install it; it'll help out in the long run for others parts / system on the motor (eg: EGR, O2, PCV, etc.). - RedFox340 Quote
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