Jumper the A and B terminals of the scanner box.
How do you set timing on a 1995 Cadillac Deville
how do i set the timing on a 1998 cadillac deville 4.6
Timing Chain.
Chain.
89 cadillac deville 4.5 v8 fireing ordre or timing ordre
chain
disconnect vacumn advance hose, bring down to curb idle, connect timing light to the # 1 spark plug wire, loosen distibutor and adjust as necessary
YES! Any time you adjust the timing you should disconnect the vacuum advance.
The cam on this engine is driven by a CHAIN and not a belt. Therefore, It has no timing belt.
The timing should be set to Top Dead Center (TDC), but you must disconnect the electronic spark advance feature. Unfortunately, I don't know how to disconnect the spark advance. The timing chain is all that can be set. There is no way to set the timing as the distributor is not adjustable.
Disconnect and plug the vacuum line and time the engine. Reconnet the vaccum and recheck the timing which should be advanced.
You don,t disconnect the computer on any car to adjust base timing. That,s what runs the car, you disconnect spark advance and that varies according to make and model. Take note if your car does not have a distributer and it,s a coil pack you can not adjust base timing that is done by the computer only. If your car has a distributer I would contact a dealer or get a Chiltons manual on how to set base timing. I could not tell you how to disconnect the advance on your car not formilar with your distributer