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Wireing diagram for optispark cap - Cars & Trucks

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97 pontiac firebird 5.7L HAS NO spark from optispark but has spark from coil


This engine uses a special flat cap and a standard rotor, right ? The spark comes into the cap and thru the rotor, then to the spark plugs.
Have you replaced the rotor ?
The spark can jump thru the rotor and ground thru the dist. shaft.
Depending on where you are testing for spark, the coil could also be weak and not pushing the spark to the plugs.

Jun 23, 2012 | Cars & Trucks

1 Answer

R&r 5.7 distripter in 1996 camaro


Replacing the Optispark Distributor is a real pain in this year and the LT1 engine.
Here are the steps
Remove accessory drive belt
Remove air intake hose to engine
Remove Radiator fans (unplug wiring harness first)
Drain the cooling system
Remove water pump (unplug water temp sensor first, tie hoses back out the way)
Remove Crankshaft balancer (you can get around the hub).
Remove Optispark cap and the rotor, the remove the bolts that hold the distributor to the block

Reverse to assemble.

Jul 21, 2011 | 1996 Chevrolet Camaro

1 Answer

I think my optispark is going out but not for sure. The car will start up but will not allow WOT it will cut out or die then is hard to start back. The service engine light will stay on until it sets for...


That rotten egg smell is unburnt fuel in the exhaust. I am no expert in ignition systems but i have heard that optispark systems aren't very hardy. Try replacing the coils, wires, and plugs. If that doesn't work its time for a new distributor.

Feb 28, 2011 | Pontiac Firebird Cars & Trucks

1 Answer

My 1992 corvette will not idle above .5 rpm wants to die.


Sounds to me you should do some checking and diagnosis first. Start with simple stuff like checking the spark plugs to see if they are fouled or if you have a damaged plug wire or even a loose or unhooked plug wire or plug. Then check all your vacuum hoses to see if there are any that are damaged, dry rotted or not functioning. Then check O2 sensors, idle control valves etc...

Finally if you've checked all that, then I'd opt for a new optispark (the term used for the distributor on these engines), and that's quite a labor intensive job.... and a new optispark is rather expensive at around 300-500 US dollars.

Good luck.

Feb 14, 2010 | 1992 Chevrolet Corvette

1 Answer

93 Corvette bucks, misses, and backfires about 2.5K RPM


Has the Optispark distributor cap been replaced yet, if not have it replaced.

Nov 11, 2009 | 1993 Chevrolet Corvette

1 Answer

Car spits and pops like the points are bad in a 60s car.no power


Yes these optispark systems had all sorts of problems in wet weather most of the time you could replace the cap portion and that would solve it but most of the time I would replace the whole thing including new plug wires, coil wire,and spark plugs .Due to the fact that you have to remove water pump to access opti spark

Sep 01, 2009 | 1995 Chevrolet Camaro

1 Answer

1995 camaro z28 keeps loosing fire


it might be the optispark harness wire.it starts and runs good. once u turn it off its hard to turn back on?

Mar 30, 2009 | 1995 Chevrolet Camaro

2 Answers

Need to know how to tell diff between optispark I and II


on opti spark the dustributor is instalee in front of the engine at crankshaft pulley.this system have plug wires problem with arcing.if your distributor is on intake you dont have optispark.

Jan 28, 2009 | 1994 Chevrolet Camaro

1 Answer

Plug wire burn spots, spark plugs fouling, loss of power, misfire


optispark distributor fails. go to summitracing.com and search optispark. it'll pop right up

Nov 18, 2008 | 1996 Chevrolet Camaro

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