I have a 2002 SL2 1.9 liter DOHC 16 Valve engine that bucks / kocks at low rpms. Changed coils, ECM & TPS & still bucks / knocks at low rpms. Looking to change MAP sensor next ?? But not sure Car as 1

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Asked by KSCKDK Mar 07, 2015 at 03:45 PM about the 2002 Saturn S-Series 4 Dr SL2 Sedan

Question type: Maintenance & Repair

2002 SL2 Automatic 1.9L DOHC 16 Valve 100k miles
Has new ECM, Coils & Throttle position sensor installed but problem still exist
Was told it could be a MAP sensor ??

3,475

Paul answered 9 years ago

Hi maybe the knock sensor is bad? Have you tuned it up lately up? Check your spark plugs and spark plug wires might be your knock sensor I'm not quite sure hope this helps?

Mark helpful

Your Answer:

I have a 2002 SL2 1.9 liter DOHC 16 Valve engine that bucks / kocks at low rpms. Changed coils, ECM & TPS & still bucks / knocks at low rpms. Looking to change MAP sensor next ?? But not sure Car as 1 1 Answer

2002 SL2 Automatic 1.9L DOHC 16 Valve 100k miles Has new ECM, Coils & Throttle position sensor installed but problem still exist Was told it could be a MAP sensor ??

2002 Saturn S-Series 4 Dr SL2 Sedan

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Maintenance & Repair
my map sensor is showing bad in my 97 saturn sc2 DOHC and i was wondering is the map sensor in my car the same as one in a cavalier or other gm vehicle because there bopth gm parts 1 Answer

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I have a Saturn 1992 SL Sedan with 164,000 miles. I am having a major problem with the car cutting off while I am driving at a fairly constant speed or when I am idling at a stop light. The engine will shut off, along with the power steering and all other electronics. This happens when at a stop light only after I press on the gas to accelerate from a dead stop, but I am able to put the car in neutral and start the car again (sometimes it takes a while to restart). We tried getting the electronic control module repaired, but this did not fix the problem. We checked the oil and it appears to be of the correct viscosity for the engine. We are at our ends as to what needs to be done to fix this dire problem. Thank you for your time! 8 Answers

I have a Saturn 1992 SL Sedan with 164,000 miles. I am having a major problem with the car cutting off while I am driving at a fairly constant speed or when I am idling at a stop light. The engine w...

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Have a 01 Saturn SL2, started having a problem about a month ago, out of the blue the car wouldn't start. Hit the fuel filter and it started but not before making this horrific sound under the hood 5 Answers

Have a 01 Saturn SL2, started having a problem about a month ago, out of the blue the car wouldn't start. Hit the fuel filter and it started but not before making this horrific sound under the ho...

2001 Saturn S-Series 4 Dr SL2 Sedan

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Maintenance & Repair
Valve Job for a dohc 1998 SL2 2 Answers

first how much does a valve job cost? Second are the valves located in the head? third is the 1993 head interchangeable with the 1998 head?

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