ruff idle

thecodyd21 · 08-24-2008, 06:05 PM

ive got an idea but maybe somebody could help me out on this one...took my truck to tha dealership for engine issues and it ended up being that i needed a new maf sensor and a new cat..so im like ok ill just throw performnace parts on it...k&n cold air,jet MAF sensor and a high flow cat with a magnaflow single in dual out muff.installed all these parts and it runs like shit on idle for about 30 sec and then clears up and runs like a raped ape..so i call jet and they tell me that the k&n is puttin oil on my sensor so i clean most the oil from the filter and intake and clean the sensor and with the correct cleaner and it does nothing> ? anybody have some input?thanks

Bill Wheats · 08-24-2008, 06:55 PM

What year is it?
The IAC may just need to be reset.

thecodyd21 · 08-24-2008, 07:08 PM

its a 99 xtreme..ive un hooked the battery a couple times and i have a data recorder and it shows bank 1,2 are too rich but i think that is just is the ruff idle stage?

thecodyd21 · 08-24-2008, 09:33 PM

ok the codes are PO171,P0174 what would cause that?MAF Sensor?

Yogi · 08-24-2008, 09:46 PM

Quote: Originally Posted by thecodyd21

ok the codes are PO171,P0174 what would cause that?MAF Sensor?

Those codes show that you are running too lean, not too rich.
Try cleaning your MAF. The K&N may have put some oil on it. Click here for more info.

thecodyd21 · 08-24-2008, 10:07 PM

could this damage the new cat?

Yogi · 08-24-2008, 10:23 PM

Quote: Originally Posted by thecodyd21

could this damage the new cat?

Not likely.

S15vortecpwr · 08-24-2008, 11:31 PM

IMO JEt makes nothing but junk. If you bought a BIGGER one than that is more than likely your problem. The fact MAF can handle 500plus hp

thecodyd21 · 08-25-2008, 08:49 AM

so u think i should go back stock?what other bolts on would help me with performance? i see alot of people are going with the msd but i see its burning up rotors and caps? opinions?

Yogi · 08-25-2008, 12:27 PM

The stock MAF is entirely adequate.

You will be replacing cap & rotor every 15-20,000 Mi. with the MSD.

Best bang for the buck mod is a custom PCM tune.

08-24-2008, 06:05 PM	#1
thecodyd21 thecody Age: 23 Join Date: Nov 2005 Posts: 12 Location: Milton Fl User is: OffLine	ruff idle ive got an idea but maybe somebody could help me out on this one...took my truck to tha dealership for engine issues and it ended up being that i needed a new maf sensor and a new cat..so im like ok ill just throw performnace parts on it...k&n cold air,jet MAF sensor and a high flow cat with a magnaflow single in dual out muff.installed all these parts and it runs like shit on idle for about 30 sec and then clears up and runs like a raped ape..so i call jet and they tell me that the k&n is puttin oil on my sensor so i clean most the oil from the filter and intake and clean the sensor and with the correct cleaner and it does nothing> ? anybody have some input?thanks
	[Reply w/Quote]

08-24-2008, 06:55 PM	#2
Bill Wheats Registered User Join Date: Apr 2008 Posts: 1,324 Location: Maine User is: OffLine	Re: ruff idle What year is it? The IAC may just need to be reset.
	[Reply w/Quote]

08-24-2008, 07:08 PM	#3
thecodyd21 thecody Age: 23 Join Date: Nov 2005 Posts: 12 Location: Milton Fl User is: OffLine	Re: ruff idle its a 99 xtreme..ive un hooked the battery a couple times and i have a data recorder and it shows bank 1,2 are too rich but i think that is just is the ruff idle stage?
	[Reply w/Quote]

08-24-2008, 09:33 PM	#4
thecodyd21 thecody Age: 23 Join Date: Nov 2005 Posts: 12 Location: Milton Fl User is: OffLine	Re: ruff idle ok the codes are PO171,P0174 what would cause that?MAF Sensor?
	[Reply w/Quote]

08-24-2008, 09:46 PM	#5
Yogi Registered (Ab) User Join Date: Feb 2008 Posts: 3,667 Location: League City, TX (Houston) User is: OffLine	Re: ruff idle Quote: Originally Posted by thecodyd21 ok the codes are PO171,P0174 what would cause that?MAF Sensor? Those codes show that you are running too lean, not too rich. Try cleaning your MAF. The K&N may have put some oil on it. Click here for more info.
	[Reply w/Quote]


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08-24-2008, 10:07 PM	#6
thecodyd21 thecody Age: 23 Join Date: Nov 2005 Posts: 12 Location: Milton Fl User is: OffLine	Re: ruff idle could this damage the new cat?
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08-24-2008, 10:23 PM	#7
Yogi Registered (Ab) User Join Date: Feb 2008 Posts: 3,667 Location: League City, TX (Houston) User is: OffLine	Re: ruff idle Quote: Originally Posted by thecodyd21 could this damage the new cat? Not likely.
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08-24-2008, 11:31 PM	#8
S15vortecpwr goin broke but n style Age: 28 Join Date: Jan 2007 Posts: 2,424 Location: Alabama User is: Online	Re: ruff idle IMO JEt makes nothing but junk. If you bought a BIGGER one than that is more than likely your problem. The fact MAF can handle 500plus hp
	[Reply w/Quote]

08-25-2008, 08:49 AM	#9
thecodyd21 thecody Age: 23 Join Date: Nov 2005 Posts: 12 Location: Milton Fl User is: OffLine	Re: ruff idle so u think i should go back stock?what other bolts on would help me with performance? i see alot of people are going with the msd but i see its burning up rotors and caps? opinions?
	[Reply w/Quote]

08-25-2008, 12:27 PM	#10
Yogi Registered (Ab) User Join Date: Feb 2008 Posts: 3,667 Location: League City, TX (Houston) User is: OffLine	Re: ruff idle The stock MAF is entirely adequate. You will be replacing cap & rotor every 15-20,000 Mi. with the MSD. Best bang for the buck mod is a custom PCM tune. Last edited by Yogi : 08-25-2008 at 12:28 PM.
	[Reply w/Quote]

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