Disconnecting the V8-6-4?

Tiny
FINAJET99
  • MEMBER
  • 1981 CADILLAC SEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 75,000 MILES
HI, I have read here about making this vehicle run on 8 all the time, but am unclear which wires to disconnect. I have read the ones on the valve covers. And one other place that I can't remember. Can someone be more specific on where these wires are. An info is appreciated.
Tuesday, August 5th, 2008 AT 10:21 PM

2 Replies

Tiny
FINAJET99
  • MEMBER
  • 4 POSTS
Hi,

Thanks for your help. After disconnecting the wires on the valve covers, seemed to be fine, but a few days later, while driving a short distance, it began to stall, like before, but not nearly as bad.

Cleared the codes last time, and here is the codes. Last time I did not do the engine codes.
Still get 25

Engine

1-10
2-99
3-99
4-68
5-70
6-0
7-46
8-0
9-2
10-0
11-2

If you can help with this I greatly appreciate it. Hope all those numbers doesn't mean lots of major things.

Thanks,

Earl
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Saturday, August 16th, 2008 AT 6:54 PM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Need to unplug the big connector on the trans, and plug in the wires on the valve covers. Disconnect the battery for a few minutes to clear the codes and drive it to see what comes back. You are probably setting codes for the actuators not being plugged in. My software doesnt even go back that far (81) for the codes.I just know the 4-6-8 was junk on the showroom floor as far as operation went, and unhooking the trans connector solved almost every problem the car had as far as driveability went. The car was ok, they just didnt quite get that system right. When it stalls, check it for spark and fuel pressure to see what is missing. It start right back up?
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Sunday, August 17th, 2008 AT 8:27 AM

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