I have a 1996 Vectra GT 34WQ and have been fixing a few small problems and now I'm going to address the faulty fuel guage, the indications are all over the place. I did a "search" on the forum on fuel guages and didn't find anything that would help. I'm going to start with the easiest things first by cleaning contacts and grounds. While looking at my copy of the "GM Chassis" drawing I noticed a Fuel Cycle Module located under the instrument panel near the steering post support rod but can't find any information about this unit. Anyone have any idea's or familiar with this unit?
Ron
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2013 Winnebago Aspect 27K
Lives in South Western Idaho
I have a 1996 Vectra GT 34WQ and have been fixing a few small problems and now I'm going to address the faulty fuel guage, the indications are all over the place. I did a "search" on the forum on fuel guages and didn't find anything that would help. I'm going to start with the easiest things first by cleaning contacts and grounds. While looking at my copy of the "GM Chassis" drawing I noticed a Fuel Cycle Module located under the instrument panel near the steering post support rod but can't find any information about this unit. Anyone have any idea's or familiar with this unit?
Ron
__________________
2013 Winnebago Aspect 27K
Lives in South Western Idaho
Yep, it is a P-30 chassis. Things have been a little busy, we just returned from a trip to Wallowa Lake State Park in Oregon, so I haven't had time to do more research or locate the Fuel Cycle Module to get part numbers off the unit. Right now I am tracking mileage instead of relying on guage. Any ideas?
Ron
__________________
2013 Winnebago Aspect 27K
Lives in South Western Idaho
I also have a 1996 Vectra GT 34WQ with the P30 chassis and have experienced the same problem but maybe to a lesser degree. Mine will occasionally read about a quarter tank low for a few minutes and then will return to "normal". I just took a 4000 mile trip and it only happened a couple times. I also noticed that occasionally my oil pressure gauge reads about 20 psi high and then goes back to "normal", all during steady state driving.
I am trying to get further info on the fuel cycle module from an engineering contact, and will post anything I learn. His first reaction was to check the grounds, as you were planning already. He is looking into the function of the fuel cycle module.
Linear Mode
