Question about 1998 Saturn SL

1 Answer

Acceleration problems....

My car doesn't accelerate very well when I mash the gas it wants to cut off, but if I baby the pedal then it goes.. once I get the car going its fine.. is this a catalytic converter problem? or fuel pump problem?

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1 Answer

You want us to pick one of your choices or just guess
The exhaust converter may need to be replaced
They last 14 years tops, if they have a happy life & no engine
issues, that kill them earlier
I would road test & then start checking things,fuel pressure,
converter,fuel filter,tps voltage, to name a few
Look at short & long term fuel trim & other data on a road trip
Not a guessing game,have to have a scanner on the car & road test, to get the same issues your having, or find them some other way
Could have vacuum leaks,old Oxygen Sensors,Dirty MAF Sensor, many things to look at

Posted on Jul 20, 2013

  • lindsay naill Jul 20, 2013

    I've had a scanner on the car and it's not the MAS it's reading fine. I replace the CMP sensor in the car. which help with the problems it had starting.

  • lindsay naill Jul 20, 2013

    I've had a scanner on the car and it's not the MAS it's reading fine. I replace the CMP sensor in the car. which help with the problems it had starting. *MAF sensor

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: 1993 SL2 TWIN CAM 4 DR.

regap the spark plugs dont go by the pregap then go and adjust the timing it will save u in fuel i did the same thing

Posted on Dec 23, 2008

  • 141 Answers

SOURCE: Acceleration issue

Just a suggestion, but the EGR valve can cause that problem. If that checks ok, then I would have the catalytic converter checked for clogging. Both ideas would cause that specific problem. I sincerely hope that this can solve the problem, or at least head you in the right direction. Best wishes.

Posted on Jan 17, 2009

  • 10 Answers

SOURCE: Car stalls when you let off the gas when warm or idling

Don't let off the gas!

Posted on May 02, 2009

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SOURCE: my 2003 saturn vue will start and run but when

yes it would but if you check the codes it will likely tell you the problem

Posted on Jan 10, 2010

  • 743 Answers

SOURCE: Acceleration Issues - Fuel Injection Problem?

A pressure test needs to be done to determine if the right amount of fuel is being delievered. Another thing that can happen is the TPS can be out of range, or even bad.

Posted on Mar 04, 2010

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