This is embarrassing because I am almost certain I caused this. After wrangling under the dashboard for hours to fix my vats system the fuel gage reads maxed full. The FSM has a very specific troubleshooting flowchart to find and fix the problem. That process involves finding connectors and wires in hard to reach and work in spaces. All of which I figure would easily take 5 hrs or more. I was hoping someone might have had the same problem and could point it out for me.

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2001 Bonneville SSEi. 1598xx mi.
great car. Wrecked


Burnt Bonny.

Note if you pull the injectors to obserbe fuel delivery...make sure you leave the plugs in and disconnect the ign. Believe me

Bump

Like is there a harness connector right to to the gauge from directly behind it? If not where is the fuel gage connector?

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2001 Bonneville SSEi. 1598xx mi.
great car. Wrecked


Burnt Bonny.

Note if you pull the injectors to obserbe fuel delivery...make sure you leave the plugs in and disconnect the ign. Believe me

Im in the opposite issue of yourself at this point. Im showing a empty reading on the dash even when the car is completly full. I recemtly had the fuel pump and sending unit replaced, and Im thinking it maybe a problem with the sending unit. Its been to cold the past few weeks to be crawling around under the car. Ill post back once the weather breaks.

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~*Field Mouse*~ Lebanon, Oregon (92 Bonneville SSE) (Dark Polo Metallic Green) "Green Jelly" (Daily Driver) Silver Star Lows, Highs And Fogs What A Bright Idea...

Smacking Them Around Work At All??? viewtopic.php?f=19&t=15757

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~*Field Mouse*~ Lebanon, Oregon (92 Bonneville SSE) (Dark Polo Metallic Green) "Green Jelly" (Daily Driver) Silver Star Lows, Highs And Fogs What A Bright Idea...

nunesjeff Ya know I grew up in Scio in the 60s and 70's. Anyway I did want to reiterate that there are diagnostic flow charts for fuel gage error repair in the FSM. I've got the 94 version. You can find them on ebay. I am sure your arrangement is similar so let me know if you need that.

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2001 Bonneville SSEi. 1598xx mi.
great car. Wrecked


Burnt Bonny.

Note if you pull the injectors to obserbe fuel delivery...make sure you leave the plugs in and disconnect the ign. Believe me

Just an update. My gage starting reading wrong right after I hooked up my VATS bypass for the injector enable. Doing that included splicing in wires into the PCM harness. After running it for 20 minutes at a time 3 or 4 times and sitting overnight the gage started reading right today. So I assume it just took time for the PCM to reset.

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2001 Bonneville SSEi. 1598xx mi.
great car. Wrecked


Burnt Bonny.

Note if you pull the injectors to obserbe fuel delivery...make sure you leave the plugs in and disconnect the ign. Believe me

NOPE. 1997 was the first year the PCM ever started seeing the fuel sender. Anything earlier than that had the fuel sender tied directly to the cluster and chime module.

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2005 GXP - White Gold Pearl, no mods...yet.
2000 SSEi - Resurrection in progress. Built L67 w/L32 fuel rail, ported heads, and cam. Camaro front brake system, GXP cluster, and much more in planning.

The 94 se FSM shows the PCM pinout with an input for injector enable. When I cut that wire and tied in the chip to the PCM pin labled for the Inj. enable the car ran fine. Which it didn't before I did this. I can look up the diagram and give more specifics if you need it, but I don't have a scanner. I looked at many sites selling these chips and they listed my car as compatible. There were other sites that discussed this circuit and the exact same problem I was having with my car.

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2001 Bonneville SSEi. 1598xx mi.
great car. Wrecked


Burnt Bonny.

Note if you pull the injectors to obserbe fuel delivery...make sure you leave the plugs in and disconnect the ign. Believe me

That's for something different. There are four wires going to the pump module...a ground, a power for the pump itself, and the two leads from the sender portion. It's the sender portion that is not tied to the PCM at all. The power portion is tied to the PCM via relay, and the PCM has a separate "fuel enable" circuit that is tied to the VATS. But the point I am trying to get across is that the sender portion of the module does not at all interface with the PCM.

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2005 GXP - White Gold Pearl, no mods...yet.
2000 SSEi - Resurrection in progress. Built L67 w/L32 fuel rail, ported heads, and cam. Camaro front brake system, GXP cluster, and much more in planning.

So my magical repair of my fuel gage was not a computer reset? OK I am happy it's working, but I wonder fer how long.

I didn't read your post right Sandrock. I figured you were speaking of the vats bypass, not the gage.

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2001 Bonneville SSEi. 1598xx mi.
great car. Wrecked


Burnt Bonny.

Note if you pull the injectors to obserbe fuel delivery...make sure you leave the plugs in and disconnect the ign. Believe me