Rough Idle

CHRISCALHOUN

MEMBER
1995 SATURN SL2
4 CYL
2WD
AUTOMATIC
235,000 MILES

Hello guys, I have a 1995 saturn sl2, DOHC, and it has 235,000 miles. Recently had a very rough issue with idling a few months ago. I bought a code scanner and found out the code issue indicated a MAP sensor issue was causing the problem so I replaced it and it ran great. It is now idiling really rough again and it is showing code 32 which is the BARO sensor failure but whenever I look up this issue online it goes back to the MAP sensor, or can possibly be the EGR valve. Which one of these issues does it sound like it could be this time and how hard is it for an individual to change out an EGR valve. The idle is so rough I need to hold the gas down even when I need to apply the brake to keep the idle up to stop it from stalling. Thanks for any help.

2 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Try cleaning out both the idle air control valve and EGR also the throttle position sensor-

Was this

answer

helpful?

Yes

No

Tuesday, February 1st, 2011 AT 5:31 PM

SATURNTECH9

MECHANIC
30,870 POSTS

To add to this answer code 32 is your egr and judging from your symptom's I would say the egr is sticking open and causing a vacuum leak. The egr is really easy to change take it off and see if it's stuck open when you have the rough running.