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93 LT 171,000 miles NO Codes set and I have not connected my computer to see what is happening dynamically - I replaced original Optispark due to failure last week, plug wires and plugs were replaced as well. I have noticed that the "hesitation" I feel when fully warmed up at part throttle is...

1993 LT1 Coupe Six speed 165,000 miles. It is my daily driver and I love this car. It now seem to have what seems like a hard long term (3-5 millisecond) miss or the like while accelerating. Here is a little recent history. I replaced the fuel pump a week ago since it was of unknown age, a...

I have been smelling a hot electrical smell when I push the A/C control head buttons that switch from Auto to Recirculate to Dash/Floor vents modes. Has anybody seen this before? It started about a month ago and I thought it might have been a fluke due to outside air being drawn inside and the...

;helpHey gang! I need to replace the carpeting and the recover the seats with leather this winter. I put chambered exhaust with an H pipe on this summer and am blown away with how great it sounds. What isn't so thrilling is the sound levels I am seeing in the cabin. Over -98 dB measured at...

Having tired of the pitiful light emitted by my stock replacement headlights and having a good bit of rain last weekend I decided that I would search the Forum for what is recommended by members as effective replacements. Several posting on several forums routed me to the Hella H6054B...

I installed a "Sweet Thunder" chambered exhaust system (with H pipe) on my 1993 Lt1 Coupe. It had original stock everything. Got the cats from Summit. Everything, all told, from manifold to new exhaust tailpipe tips, it cost around $600. Did what welding was needed my self so the wasn't any...

Gang, I'm looking for some collective wisdom here. I know old school small block Chevys pretty well but know little about the LT1. My limited research indicates that stock rockers are 1.5:1. Has anybody installed the 1.6:1 aftermarket rocker on a bone stock LT1? What warnings could you offer...

Just got my 1993 LT1 out of the paint shop and the display, where the fuel mileage data etc. is displayed, has started flashing "Sys" while running. Once it starts flashing it flashes once per second for three cycles and then the normal display starts back up and at an undetermined interval it...

Having removed the fascia three times over the last two weeks I have a little experience with this. Since we don't have jigs and the manual doesn't address this I had to experiment with causing the fascia outside edges, where the hood is supposed to meet in the same plane, meet. My experience...