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Could bad optispark cause this code 42?
Yes, a faulty OptiSpark can indeed lead to a Code 42, which typically indicates a problem with the crankshaft position sensor or its signal. If the OptiSpark is malfunctioning, it may not provide accurate timing information to the engine control module, resulting in the error code. Additionally, issues with the wiring or connections associated with the OptiSpark can also trigger this code. It's essential to diagnose the entire system to pinpoint the exact cause.
How much labor cost to replace 1995 camaro z28 optispark...already have part?
the dealership will quote about $600.00 for the optispark alone. they quote 10hrs at 60.00 shop/hr
How do you change a distributer in a 1993 Corvette?
Odds are you have an optispark unitl. If so it is under the water pump on the front of the engine. Look up optispark replacement on LT1 or C4 Corvette.
Lt1 hesitates when at high RPM?
Probably an issue with the optispark
How do you adjust ignition timing on 96 impala?
The 96 Impala LT1 uses an optispark ignition system in which timing is controlled by the PCM (Computer). In order to change the timing you would need to use a computer, cable, and a tuning program such as PCM4Less or Tunercat. The Optispark mounted on the front of the engine is non adjustable for timing controls. The timing is controlled by the PCM sending signals to the ignition control module located adjacent to the coil on the passenger head.
How do you adjust timing on 1994 Z28 5.7 lt1?
you dont! the computer controls the optispark completly...
Does a 1996 Chevrolet Camaro Z28 have a distributor?
Yes, it is located behind the balancer, all the plug wires lead to it. The distributor for all 92-97 Camaros, Firebirds, and Corvettes with the 5.7L LT1 motor is called an Optispark distributor, unlike most conventional ignition distributor designs, the optispark design uses an optical sensor and a trigger disc to send the ECM a high and low pulse signal. Located directly under the waterpump, the optispark dose require a fair amount of labor for removal. There are many options available for LT1 owners when it comes to replacing their malfunctioning Optisparks. The guys at www.all-ignition.com are the foremost experts on this particaluar ignition system and have the largest selection on Brand New Optispark distributors. They provide excellent tech support on install questions and general info on the optispark distributors.
What can cause a 1995 Pontiac Transam to start but wont stay running?
The Optispark distributor is notorious for causing this problem.
When my 1996 camaro z28 is cold it runs good but as soon as it warms up it misses?
u need a new OPTISPARK
Where is the distributor cap on a 1996 Chevrolet Impala?
The distributor is called an optispark, and is located on the front of the engine behind the water pump.
94 z28 camaro with a 5.7 liter 350 lt1 and it has the 460le auto trans recently purchased sat for a year in a garage this car has no power poor acceleration any ideas?
The problem could be your optispark distributor. They have a tendency to corrode inside and when this happens, it hinders the performance to the point that acceleration is greatly hampered. A bad optispark will also cause starting issues and engine misfires. Besides the optispark, check for a vacuum leak. Intake manifold leaks are very common on the LT1, as well as valve cover gasket leaks.
How can you tell that your optispark distributor is going bad?
You can tell that your optispark distributor is going bad if you experience symptoms such as rough idling, stalling, or difficulty starting the engine. Additionally, if you notice a decrease in engine performance or misfires, especially under load, it may indicate a failing optispark. Visual signs like corrosion, moisture inside the distributor, or burnt connectors can also suggest impending failure. Finally, using a diagnostic tool to check for error codes related to ignition can help confirm the issue.
