Question about 1988 Cadillac Brougham
Did you set the TPS voltage or just replace it? I think it gets set to .45v. Make sure it is set precisely how GM specs it.
The VRV I believe is the system that keeps the car from dieseling. It is all on the drivers side valve cover. Basically itgets vacuum from the vacuum ball on the fender (near the master cyl)that holds the vacuum on the ILC, Idle Level Control, that littlethingy that keeps the engine from dying when it tries to stall. Elsewhen the engine would be shut down, the vacuum would drop, and it wouldtry to idle it up, causing dieseling, aka, run on. It is oftenmissunderstood and can cause headaches... I would leave it alone unlessit is dieseling, and then I would troubleshoot that circuit. Basicallyit will remove power from the solenoid at shut down and switch to thereserve vacuum. If the reserve vacuum is not working, it will diesel.
Posted on Sep 09, 2009
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Posted on Jan 02, 2017
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