Operation Lipstick on a Pig

[Wageslave]

Well, I was thinking about putting them in anyway just to squeeze every last vapor out of a gallon. I'll have to get them off the Firebird tank, then I can just wire & plumb them in under the hood. The EVAP does run a diagnostic at startup; I wonder if it kills the gauge on fail. Seems stupid, but possible nonetheless.

That LS1TECH link mentioned their fuel gauge not working until they hooked up the pressure sensor. YMMV

 

[fleming442]

So, I drove it to work today (about 45 miles). The fuel gauge started working about halfway there. I'm wondering if the vent port in the G body sender is getting blocked when full. We shall see as I drive it the rest of the week.
1700rpm @ 78mph! 1500@55 When it downshifts it only goes to 2500 rpm. If this tank goes all week, I'll be ecstatic! Or, will I be ludicrous?

 

[TURNA]

Loose wire?

 

[fleming442]

Loose wire?

I don't think so as it shares all power and ground from the cluster, and gets signal from the PCM. I was reading up on some of the later Bonnevilles having a similar issue. The fix was a resistor in the sender line. Apparently, the computer sees the long term full reading as an electrical fault...

 

[TURNA]

Yep loose wire!

 

[1bad79]

Did it do a burnout yet we need some video of that

 

[fleming442]

Hmmm, not liking this so far. Initial mileage rating is 17 with 93 octane, injector cleaner, and various WOT stints. I had a coolant leak at the water pump inlet on the engine; replaced the hose clamp and crossed my fingers. The damn thing is loud inside the car and vibrates like it has solid motor mounts sitting at a red light. That may be from stiffening up the body mounts and new motor and trans mounts? It downshifts constantly on the highway trying to hold that 80mph cruise altitude. I may have to put some lower gears out back just to maintain my sanity. Not recommended.

 

[DRIVEN]

Maybe run a half tank in drive instead of overdrive to see if it improves?

 

[fleming442]

I'm going to run this tank of 87 as I normally would first. Next tank (Thursday at this rate) will get the 3 speed attempt.

 

[Texas82GP]

I'm guessing the F body donor had a 3.08 or 3.42? The 6 is working too hard with that tall highway gear (2.41). Put a little more gear in it and a quieter muffler. Consider the Dynomax Ultraflow. Very mellow but high flow. Is there any chance the harshness is the compressor up against the control arm?