Driving cant pass a limit
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Registered User
Joined: Jan 2018
Posts: 18
Driving cant pass a limit
Got camaro z28 1994 once the car is on 55 to 60 mph and at 2000 rpm the car starts to like shake and does a pop wont let me pass that .could it be the catalytic converter but got that changed 2 months ago
Last edited by Thedog; Aug 26, 2018 at 12:41 PM.
Registered User
Joined: Apr 2003
Posts: 2,628
From: Pgh, PA
Re: Driving cant pass a limit
No codes? Have you scanned it?
Are you sure it is MPH and not drivetime? Does it do it cold as well as hot? What does it do under wide open throttle?
Does the Check Engine light flash? That would be indicative of a misfire.
Any modifications done to the car?
Are you sure it is MPH and not drivetime? Does it do it cold as well as hot? What does it do under wide open throttle?
Does the Check Engine light flash? That would be indicative of a misfire.
Any modifications done to the car?
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Joined: Nov 1998
Posts: 71,109
From: Hell was full so they sent me to NJ
Re: Driving cant pass a limit
Does sound like misfires, due to an ignition problem, resulting from the stress of lugging the engine at low RPM. Check all ignition components - coil, wires, plugs. Maybe the Opti cap.
Registered User
Joined: Apr 2003
Posts: 2,628
From: Pgh, PA
Re: Driving cant pass a limit
If it is all original, as old as it is I would certainly check (or just R&R) the spark plugs and wires. Test the coil.
If all checks out well and the problem still persists; test the Optispark, following ShoeBox's instructions to the T.
If all checks out well and the problem still persists; test the Optispark, following ShoeBox's instructions to the T.
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