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Chevy p 30 chassis w/454 with electical issues

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Chevy p 30 chassis w/454 with electical issues steve 8-4-08  
WE are experiencing jumpy voltage reading (or no voltage sometimes)from the throttle position sensor circuit. Codes say faulty TPS. We replaced the ECM and the TPS (twice actually) and the output shaft sensor on tranny in an attempt to correct but there is no change. The vehicle goes into "limp mode" so it idles high, shifts hard and will not go into overdrive. The 1983 p30 motorhome chassis has 454 with throttle body fuel injection and electronic transmission. Transmission fluid levels are good and wiring seems ok except for the pack of wires that go into the side of the tranny. They are a bit soft and spongy but look intact otherwise. Could this be the problem?
Re: Chevy p 30 chassis w/454 with electical issues LaVeda 10-1-08  
We just bought a 1996 Winnebago Brave and when we picked it up all the lights worked and everything but then the tail lights went out and now we have no lights inside or anything. Then generator will not run also. We can not find the fuses and was wondering if you could tell me where to find the fuses. We found a diagram of the fuses but does not tell us where they are. Thank you in advance.
Re: Chevy p 30 chassis w/454 with electical issues Fred 10-15-08  
Chevyp30 454 w/electric transmission. The dash has a light (auto brake) that lights when trannsmission is in park or emergency brake is on when engine is running.
Supposed to go off when e brake is released or xmission is taken out of park. I know it has a switch located somewhere that is part of this circuit. I need to locate it!!!!
Re: Chevy p 30 chassis w/454 with electical issues Ron Bujold 6-1-09  
HI

Looking for the main computer for a.
Gulfstream RV. I belive to be built
on a GM P30chassis with a 454 and
a 4L 80E transmission
Main serial #1GBKP37N3M3300759

Numbers on the computer
Service no. 16147060 AWAU

864301 K102320352
Can someone be of assistance?
Re: Chevy p 30 chassis w/454 with electical issues Danny O Henderson 9-15-09  
I have a 94 Winnegago Vectra..shortly after blowing a right front tire, changing it and driving off the fuel pump stoped working...I have been looking for it's relay and/or fuse to check before pumping out 78 gal of just added gass, droping the tank and changing the pump. I have lossened the lines to the throttel body and with key and cranking have no fuel. Can anyyone help me locate them.
Re: Chevy p 30 chassis w/454 with electical issues frances 10-7-09  
I need a digram of the trans 4L80E the computer for the trans wrieing and trans it self
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