95lq1vert's 1994 Cutlass Supreme convertible progress thread

[95LQ1VERT]

Finally got around to retrofitting 4th gen Camaro window sweep felts on my Cutlass. It definitely looks much better, and the wind noise reduced some! Hopefully they last a while considering they have been on a junkyard Camaro for its lifetime.

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[GabsOlds]

Congratulations on the upgrade. 

[94 olds vert]

Looks good!

[95LQ1VERT]

My idle issue is back... The idle likes to dip up and down when slowing down or coasting. It's not every time I slow down but intermittent and feels like it wants to stall.

My old Actron Scanner shows no faults, no misfiring, and it has me stumped. I recently changed the injectors out cause 2 old ones were dripping fuel into the cylinders and it was causing an issue starting after it had ran for a bit. Now it runs smoother while accelerating or at idle but still acts like it wants to stall when coasting or coming to a stop.

I checked the fuel pressure at the rail when I did the injectors, and at KOEO the pump only primed to 35psi. Engine running was around 32 psi, and when I unplugged the vac line off th FPR, it went up to 39psi. After I prime the pump and shut it off, the pressure dropped from 35psi to 0 in less than an hour. So the pump or check valve in the pump I believe is suspect?

The only thing that hasn't been replaced on this car are the crankshaft sensors, the fuel pump, the alternator and the computer. I am stumped.



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[95LQ1VERT]

Hi everyone!

Little update...  I still have the ol' Cutlass Convertible.  Been through a tornado with it, barely touched thankfully, and its currently sitting in my barn at 119K miles.  

[bluecalais79]

Intake manifold gaskets may need to be changed.