Horrible Idle dilemma... - TriStateTuners.com :: Home of Tristate Auto Enthusiast

Bobert540 · 06-03-2008, 08:51 PM

I went to leave this morning and when I started the car the idle was very rough and the motor was shaking the car. When I hit the gas it would bog and sound like a harley. My check engine light is already on because of my headers and hfc but the car has always been running good. Any ideas?

I pulled the wire on each cylinder and tried a new cam sensor but was not that either...

Jeffros Spec V · 06-03-2008, 11:16 PM

Sounds like it's only firing on three cylinders.

Get the codes read so you don't have to guess.

**TROLL** · 06-03-2008, 11:30 PM

vac leak?

Bobert540 · 06-04-2008, 09:05 AM

I had the codes read, checked for vac leaks..... my friend thinks it is the timing.

**TROLL** · 06-04-2008, 09:14 AM

how could the timing change? no way that i know how.

how can you be 100% sure that there are no vac leaks without pressure testing or smoke testing?

Bobert540 · 06-04-2008, 10:04 AM

I wish I could take video of how the car acts. There is no way it is a vac with how rough it is. I try to give it gas and it bogs bad. It is just dumping fuel. You can smell i out the exhaust

Bobert540 · 06-04-2008, 10:05 AM

I was told that the belt could have jumped a tooth.

Bobert540 · 06-04-2008, 10:05 AM

I just can't figure out what it is and how it happened since the car was fine the night before and I get in it in the morning and this happened just like that.

**TROLL** · 06-04-2008, 11:44 AM

ok i dont see how jumping a tooth would have to do with dumping fuel either though...
if you dont have a good idea of what it is or how to troubleshoot it sounds like you should just take it to an experienced shop and have them look it over.

05OCsrt-4 · 06-04-2008, 11:50 AM

honestly if u keep with ur timing belt maintenance the belt "should" not jump a tooth, i'd be looking at a stuck injector thats just pouring fuel into ur engine

Bobert540 · 06-04-2008, 07:33 PM

I am taking it to a shop on Friday because I am stumped lol. I swear my car is possessed....

Bobert540 · 06-04-2008, 07:34 PM

Btw thanks for the input. I appreciate it.

NickRSwrx · 06-04-2008, 07:47 PM

Do you have a blow off valve? If so, it can get stuck open and let me tell you, NOT fun! Check that, its a simple check.

wgknestrick · 06-04-2008, 07:59 PM

Check your intake track. I bet there is a leak somewhere.

Erik · 06-04-2008, 08:02 PM

yea man, sounds def. like a vacuum leak.

RyanG · 06-05-2008, 02:14 AM

Bob, i got your message late buddy.

check the MAP sensor. Its located on the intake manifold right where the throttle body is. Unplug it and see if it changes. Im willing to bet that is the issue.

RyanG · 06-05-2008, 02:26 AM

Quote:

Originally Posted by wgknestrick

Check your intake track. I bet there is a leak somewhere.

MAP car, not gonna make a difference :/

Bobert540 · 06-05-2008, 07:21 AM

I just went out and swapped my brothers in and it didn't change anything.
So far the:
-The MAP sensor has been checked
-Cam Position sensor has been checked

Could it be as simple as replacing the wires and plugs?

RyanG · 06-05-2008, 03:56 PM

could also be the coil. Have you verified spark on all 4?

If you need any parts lemme know. I still keep RS stuff on hand

IMPREZvWRX · 06-05-2008, 07:36 PM

You got the codes read, and didn't tell us what they are. List the trouble codes.

Quote:

Originally Posted by NickRSwrx

Do you have a blow off valve? If so, it can get stuck open and let me tell you, NOT fun! Check that, its a simple check.

I'm 98% sure it's not the BOV stuck open.

06-03-2008, 08:51 PM	#1
Bobert540 Tri-State Addict Join Date: Jul 2005 Location: Allentown,PA Member #637 My Ride: 2013 WRX Limited Hatch, 2006 WRX Limited Wagon (SOLD), 2001 2.5RS Sedan (SOLD) iTrader: (0)	Horrible Idle dilemma... I went to leave this morning and when I started the car the idle was very rough and the motor was shaking the car. When I hit the gas it would bog and sound like a harley. My check engine light is already on because of my headers and hfc but the car has always been running good. Any ideas? I pulled the wire on each cylinder and tried a new cam sensor but was not that either...

06-04-2008, 08:02 PM	#15
Erik Tri-State Post Whore Join Date: May 2006 Location: Glenside, PA Member #1962 My Ride: 2001 Audi A6 2.7 Twin Turbo iTrader: (4)	yea man, sounds def. like a vacuum leak. __________________ --Eric '96 Mazda Miata \| FM V-Maxx Coilovers \| Jackson Racing Exhaust/Intake GONE To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. 01' Audi A6 2.7 Twin Turbo \| Daily \| NoMods

06-05-2008, 02:14 AM	#16
RyanG Tri-State Post Whore Join Date: Jan 2005 Location: Easton, PA Member #63 iTrader: (1)	Bob, i got your message late buddy. check the MAP sensor. Its located on the intake manifold right where the throttle body is. Unplug it and see if it changes. Im willing to bet that is the issue. __________________ I am Area1320 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Last edited by RyanG; 06-05-2008 at 02:25 AM.

06-05-2008, 07:21 AM	#18
Bobert540 Tri-State Addict Join Date: Jul 2005 Location: Allentown,PA Member #637 My Ride: 2013 WRX Limited Hatch, 2006 WRX Limited Wagon (SOLD), 2001 2.5RS Sedan (SOLD) iTrader: (0)	I just went out and swapped my brothers in and it didn't change anything. So far the: -The MAP sensor has been checked -Cam Position sensor has been checked Could it be as simple as replacing the wires and plugs? Last edited by Bobert540; 06-05-2008 at 07:36 AM.

06-05-2008, 03:56 PM	#19
RyanG Tri-State Post Whore Join Date: Jan 2005 Location: Easton, PA Member #63 iTrader: (1)	could also be the coil. Have you verified spark on all 4? If you need any parts lemme know. I still keep RS stuff on hand __________________ I am Area1320 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

06-03-2008, 11:16 PM	#2
Jeffros Spec V Tri-State Post Whore Join Date: Mar 2005 Location: Langhorne PA Member #263 iTrader: (0)	Sounds like it's only firing on three cylinders. Get the codes read so you don't have to guess.

06-04-2008, 09:05 AM	#4
Bobert540 Tri-State Addict Join Date: Jul 2005 Location: Allentown,PA Member #637 My Ride: 2013 WRX Limited Hatch, 2006 WRX Limited Wagon (SOLD), 2001 2.5RS Sedan (SOLD) iTrader: (0)	I had the codes read, checked for vac leaks..... my friend thinks it is the timing.

06-04-2008, 10:04 AM	#6
Bobert540 Tri-State Addict Join Date: Jul 2005 Location: Allentown,PA Member #637 My Ride: 2013 WRX Limited Hatch, 2006 WRX Limited Wagon (SOLD), 2001 2.5RS Sedan (SOLD) iTrader: (0)	I wish I could take video of how the car acts. There is no way it is a vac with how rough it is. I try to give it gas and it bogs bad. It is just dumping fuel. You can smell i out the exhaust

06-04-2008, 10:05 AM	#7
Bobert540 Tri-State Addict Join Date: Jul 2005 Location: Allentown,PA Member #637 My Ride: 2013 WRX Limited Hatch, 2006 WRX Limited Wagon (SOLD), 2001 2.5RS Sedan (SOLD) iTrader: (0)	I was told that the belt could have jumped a tooth.

06-04-2008, 07:33 PM	#11
Bobert540 Tri-State Addict Join Date: Jul 2005 Location: Allentown,PA Member #637 My Ride: 2013 WRX Limited Hatch, 2006 WRX Limited Wagon (SOLD), 2001 2.5RS Sedan (SOLD) iTrader: (0)	I am taking it to a shop on Friday because I am stumped lol. I swear my car is possessed....

06-04-2008, 07:34 PM	#12
Bobert540 Tri-State Addict Join Date: Jul 2005 Location: Allentown,PA Member #637 My Ride: 2013 WRX Limited Hatch, 2006 WRX Limited Wagon (SOLD), 2001 2.5RS Sedan (SOLD) iTrader: (0)	Btw thanks for the input. I appreciate it.

06-04-2008, 07:47 PM	#13
NickRSwrx Tri-State Aficionado Join Date: Aug 2007 Location: Warrington@17lbs Member #5457 My Ride: 01RS 317awhp/277ftlb iTrader: (0)	Do you have a blow off valve? If so, it can get stuck open and let me tell you, NOT fun! Check that, its a simple check.

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