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When I start my car the check engine light is ON.

Tiny
SMRTHSHAH1
  • MEMBER
  • 2001 VOLKSWAGEN JETTA
  • 109,400 MILES
When I start my car the check engine light is ON but after I drove for few minutes the CEL starts flashing and giving jerks. I think there is misfire sometimes because when I press the accelerator paddle, it won't increase the speed but all of a sudden the power increases. I observed that my coolant level is low. When I start the car the temperature gauge does not increases but after sometime it increases to a normal and after that the CEL starts blinking.

Make: VW
Model: Jetta GLS VR6
Year: 2001
Mileage: 109400(approx)
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Saturday, December 29th, 2012 AT 9:20 PM

2 Replies

Tiny
EXOVCDS
  • MECHANIC
  • 1,883 POSTS
Yes, engine misfire.

Check the coil pack for arcing. Also check your spark plugs and ignition wires.

Extended misfires will damage the catalytic converter.

Thomas
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Saturday, December 29th, 2012 AT 9:39 PM
Tiny
EXOVCDS
  • MECHANIC
  • 1,883 POSTS
Scan the ECM for codes. If you get a cylinder specific code such as p0301, p0302 etc. Then focus on that cylinder

p0301 = cyl 1
p0302 = cyl 2
.
.
P0306 = cyl 6

If just p0300 (random misfire). Probably the coil pack.

Thomas
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Saturday, December 29th, 2012 AT 9:41 PM

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