I put on a K&N air intake on my 99 gp gt about two days ago went on perfect, no problems (plus I reset the PCM and been driving without my lead foot) but on the way to school (35min drive) the "service engine soon" light came on. Im guessing its because of the new intake but dont know why or what i should do?

PS ive had the car for two years put on 15K miles never had a problem

I put on a K&N air intake on my 99 gp gt about two days ago went on perfect, no problems (plus I reset the PCM and been driving without my lead foot) but on the way to school (35min drive) the "service engine soon" light came on. Im guessing its because of the new intake but dont know why or what i should do?

PS ive had the car for two years put on 15K miles never had a problem

check and clean your MAF sensor. if there was too much oil on your K&N filter, that can trip the SES light. also, double check all of the connections for the intake. dont want any leaks...

First thing you should do is find out why the code was set. I can sit here and tell you it could be this or it could be that. But I have no idea until you find how what code set the light to go off. Just take your car to an AutoZone or some place like that, have them scan the car, and they can tell you what is wrong. Make sure you get the exact code...not just a general description of it. You need to know the number.

But my guess is that the air filter is over oiled and you are getting a MAF code and your MAF simply needs cleaned....or it could be totally unrelated to the intake install.

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1997 GTP - 200k+ miles, PEMs, 3" SS Exhaust w/ Borla Mufflers, 3.4", 180* stat(summer), FWI, 1.84 RR, PT, SLP hood, KYB GR2s, GMPP Handling Kit, etc...

Check out my reply on your other thread you started.

http://www.grandprixforums.net/f71/s...html#post19815

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1997 GTP - 200k+ miles, PEMs, 3" SS Exhaust w/ Borla Mufflers, 3.4", 180* stat(summer), FWI, 1.84 RR, PT, SLP hood, KYB GR2s, GMPP Handling Kit, etc...

Zef meant your AIR filter is over oiled, but he is right, its really a guessing game until we know what the code is. At that point we can have you check a couple of things to narrow it down.

Here is a list of codes that will cause the check engine light to come on...

http://www.grandprixforums.net/dtc.php

webracin

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2001 Grand Prix GTP
ZZP HUB 3.2 3.4, ZZP 8 Rib conversion, JC 3" DP Gen 2 cat & U-bend Delete, Accel Super Stock 8mm wires, DHP 1.5, 180* Thermo, Throttle Spacer, SS Intercooler, ZZP Fuel Rails, SLP CAI w/K&N Cone, Dynomax cat back, ZZP Tranny.

2000 Grand Prix GTP Daytona K&N, Flowmasters

im thinking about putting a cone filter on mine but i wont have to worry about this problem , my ses light has been on for 5,000 miles lollol...... i would agree , these guys are the most helpful bunch , but gotta give them something to work with , and with out a code its throwing parts and money at it.

Whoops...yeah, sorry about that. Fixed it now.

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1997 GTP - 200k+ miles, PEMs, 3" SS Exhaust w/ Borla Mufflers, 3.4", 180* stat(summer), FWI, 1.84 RR, PT, SLP hood, KYB GR2s, GMPP Handling Kit, etc...

I found out the number its PO172 they said it has something to do with the "fuel trim in bank one condition"
"THE POWERTRAIN CONTROL MODULE USE THE O2 SENSOR TO CALCULATE THE AIR/FUEL RATIO OF THE ENGINE. THE COMPUTER HAS RECOGNIZED A RICH OR LEAN CONDITION ON ONE ENGINE BANK ONLY."
-thats what the paper told me, now what should i do from here?

I found out the number its PO172 they said it has something to do with the "fuel trim in bank one condition"
"THE POWERTRAIN CONTROL MODULE USE THE O2 SENSOR TO CALCULATE THE AIR/FUEL RATIO OF THE ENGINE. THE COMPUTER HAS RECOGNIZED A RICH OR LEAN CONDITION ON ONE ENGINE BANK ONLY."
-thats what the paper told me, now what should i do from here?