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Engine light

Tiny
MEGANHEY
  • MEMBER
  • 1995 SAAB 900
  • 2.6L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 109,000 MILES
I bought a 1995 Saab 900 SE Convertible with 109,000 miles. Have a check engine and srs light. Codes came back and were cleared, knock sensor, mass airflow sensor, p0326 p0331/2 p0102, p0113 should I be worried? Will this effect my emissions? The exhaust sounds loud.
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Thursday, March 10th, 2016 AT 9:34 PM

10 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,567 POSTS
This will effect your emissions because you have a check engine light on it will not pass. It sounds like you have a catalytic converter that has failed and failing apart causing the exhaust system to plug which will give you a code for the MAF.

Here is a guide to help you confirm the problem.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Please let us know what happens so it will help others.

Cheers, Ken
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Thursday, August 24th, 2017 AT 3:10 PM
Tiny
DEEJ1188
  • MEMBER
  • 1 POST
  • 1992 SAAB 900
  • 4 CYL
  • FWD
  • MANUAL
  • 245,000 MILES
Engine Mechanical problem
1992 Saab 900 4 cyl Front Wheel Drive Manual 245000 miles

When the Check Engine light comes on, the car will erratically rev itself whether I'm idling or even moving. I can even have my foot off the accelerator and the car will continue to speed up. As I idle at lights, the RPM needle will dance around anywhere from a sputter to 4k. When I try to accelerate, it will feel like the engine is being choked and I have to feather the clutch properly or it will stall. Sometimes, it does stall and takes a few minutes to get it going again. I can't figure out what the source of this is because when the Check Engine light isn't on, it will run perfectly fine. Until the dreaded light comes on again.
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Thursday, August 24th, 2017 AT 3:10 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

You can still run a scan as the fault code will be held in the memory until deleted.

Mark (mhpautos)
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Thursday, August 24th, 2017 AT 3:10 PM (Merged)
Tiny
JONE_S4757
  • MEMBER
  • 2 POSTS
  • 1998 SAAB 900
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 16,000 MILES
Other Category problem
1998 Saab 900 4 cyl Two Wheel Drive Automatic 160, 00 miles

MY check engine light just went on and my manual says it is probably an ignition, fuel or emissions problem. I am embarassed to admit I have been driving it lately (past two months)on 1/4 tank (during rainy and cold weather) although I do use 93 oct usually never 87. Could that be the problem? Would dry gas help or is it too late? I really don't drive more that 30 miles per week.
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Thursday, August 24th, 2017 AT 3:10 PM (Merged)
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Take it in and have it scanned, thats the best thign to do.

Post back the exact codes here and we will continue.
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Thursday, August 24th, 2017 AT 3:10 PM (Merged)
Tiny
JAMESAPPLETON
  • MEMBER
  • 2 POSTS
  • 1997 SAAB 900
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 128,000 MILES
Engine Performance problem
1997 Saab 900 4 cyl Two Wheel Drive Automatic 128000 miles

Just bought the car yerterday. It ran perfect.

Started it up today after sitting all night and the check engine & check gear box light came on and stayed on. I tried shutting off and restarting a few times and the lights stay on.
Question - Any idea what the problem can be and how do I find out?
Next question - is it possible for someone to reset the code where it won't show up for a day or so. This was a private sale and I'm thinking I got fooled into this one.
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Thursday, August 24th, 2017 AT 3:10 PM (Merged)
Tiny
MNTHNY4
  • MECHANIC
  • 612 POSTS
Yes it is possible for light to be turned off, take care to auto parts store & have them tell u the codes in the system, then post them back
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Thursday, August 24th, 2017 AT 3:10 PM (Merged)
Tiny
CHATHAMSUE
  • MEMBER
  • 1 POST
I would love to know what the outcome was on this one. I am considering the same car with the same lights on. 1997 900s with 80,000 miles. Saw car thurs p.M. - No lights. Friday the lights came on. Sunday they didn't. Aslo is it normal for brake lights to come on, step on brakes and they go off? Thanks for the help
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Thursday, August 24th, 2017 AT 3:10 PM (Merged)
Tiny
D6T569
  • MEMBER
  • 1 POST
  • 1988 SAAB 900
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 91,000 MILES
1988 Saab 900 4 cyl Two Wheel Drive Automatic 91000 miles

driving car on expressway, and as I was coming to a stopthe car died.I checked for fuel, and spark and I dont have either. Check engine lite come on breifly and goes out as it always have, ran a hot wire to pos side of fuel pump and it comes on. Finaly I put the test lite on the pos side of the dist and it had power as well as the ignition coil, please help. Thankyou
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Thursday, August 24th, 2017 AT 3:10 PM (Merged)
Tiny
MNTHNY4
  • MECHANIC
  • 612 POSTS
U may have a crank position sensor problem, these older saabs have a few issues with the wiring harness junction crimp connection from main ecm, best to take car to a certified saab tech to have repairs done, good luck.
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Thursday, August 24th, 2017 AT 3:10 PM (Merged)

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