stalls at stop

1997 SATURN SW2
114,000 MILES • 1.9L • 4 CYL • FWD • AUTOMATIC
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NICK CHIZO
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  • 4 POSTS
stalling issue at stop, replaced injectors, ECTS air idle control, TPS, coil packs. cleaned throttle body and replaced intake manifold gasket. still stalls at stop and stutters when you take foot off gas at highway speed. codes are clear.
Jun 27, 2017 at 6:03 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Hello,

I would start with the spark plugs which can cause the problem. Here is a guide that can help you.

https://www.2carpros.com/articles/how-to-change-spark-plugs

and

https://www.2carpros.com/articles/stall-at-idle


Please let us know what happens, we are interested to see what it is.

Cheers, Ken
Jun 30, 2017 at 11:58 AM
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NICK CHIZO
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  • 4 POSTS
Spark plugs are new and the trans is an automatic
Jun 30, 2017 at 12:00 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Sorry about that, lets check the engine for a vacuum leak which would cause the problem are are describing.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Please let us know what happens.

Cheers, Ken
Jul 2, 2017 at 6:30 PM
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NICK CHIZO
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  • 4 POSTS
Changed intake manifold gasket, no change
Jul 2, 2017 at 7:35 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
I am wondering if the MAF needs replacement becasue of the sensor being a little off but not enough to create a code which is common.

https://www.2carpros.com/articles/how-to-replace-a-mass-air-flow-sensor-maf

Please let us know what happens.

Cheers, Ken
Jul 3, 2017 at 11:28 AM
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NICK CHIZO
  • MEMBER
  • 4 POSTS
Tried MAF, no change,also, tried crank sensor saw slight change after relearn
Jul 3, 2017 at 11:34 AM
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