maybe all you experts can help me out...my car runs fine for a little while and then when you give it any sort of gas at all it wants to sputter and die out. You can get in and start the car a bunch of times and and it will work fine but try to start it another time and it will just crank and crank. fuel pump? fuel filter?
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Could be optispark, could be fuel related, could be a lot of things. A detailed description of your car and it's mods in your signature would greatly help.
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It is a 1995 formula with the LT1 in it. The only modification that I have done is I put the ram air hood and air box from Suncoast Creations. So it's stock.Comment
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It would really be beneficial to check your fuel presure. Do a search for "fuel pressure regulator". There have been some recent posts on how to properly check your fuel pressure.
Assuming you are getting proper fuel delivery, I would bet on the optispark. Are you still not getting the SES light?Comment
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That's exactly what my 93 did when the Opti went...thank God it was under warranty. i would like to break the thumb of the genius who put it there anyway...
1998 TA M6 SLP Lid, Cold Air and Bellow, Flowmaster 3", Centerforce DF, Fast Toys MAF ends, JET skip shift eliminator 312rwhp/366rwtq
92 Lincoln Mark VII LSC For Sale
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That same thing happened to my bros. '93 formula. It was the distributor cap. It would act up every once in a while, but it would be at its worst in wet and rainy weather. Humidity in the air really got to the ignition and drove it crazy.
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Well we took the car via flatbed to the local mechanic and he bypassed the relay for the fuel pump and go no response. There is no activity at all at the pump. Zero fuel pressure. He told me that even a bad fuel pump registers something at one point or another. He thinks that it may be in the computer system but he dont have the equiptment to check the comp. so off it went to the Pontiac dealership in town for a check up. There has been no reply as of yet.Comment
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My understanding of the OPTI spark is if it throws a code 16 or 36 (meaning it is bad) it will shut off the fuel pump.2002 Electron Blue Vette, 1SC, FE3/Z51, G92 3.15 gears, 308.9 RWHP 321.7 RWTQ (before any mods), SLP headers, Z06 exhaust, MSD Ignition Wires, AC Delco Iridium Spark Plugs, 160 t-stat, lots of ECM tuning
1995 Z28, many mods, SOLD
A proud member of the "F-Body Dirty Dozen"Comment
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Isn't the Opti-Spark behind the water pump? I just changed the water pump last summer. That was not exactly my favorite thing in the world to do. Are they pretty expensive? Thats a dumb question...isnt everything!! Ill let you know what i find out.Comment
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If you can get a scanner on it, it will tell you what is wrong with it.2002 Electron Blue Vette, 1SC, FE3/Z51, G92 3.15 gears, 308.9 RWHP 321.7 RWTQ (before any mods), SLP headers, Z06 exhaust, MSD Ignition Wires, AC Delco Iridium Spark Plugs, 160 t-stat, lots of ECM tuning
1995 Z28, many mods, SOLD
A proud member of the "F-Body Dirty Dozen"Comment
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If you have power at the pump (and you've checked for 12 Volts with a meter) and it doesnt run, the pump is bad. If your mechanic cant figure that out, you may want to get another oneOriginally posted by jarod
Well we took the car via flatbed to the local mechanic and he bypassed the relay for the fuel pump and go no response. There is no activity at all at the pump. Zero fuel pressure. He told me that even a bad fuel pump registers something at one point or another. He thinks that it may be in the computer system but he dont have the equiptment to check the comp. so off it went to the Pontiac dealership in town for a check up. There has been no reply as of yet.
Dont take it to the dealer unless you want to pay double what the job is worth.
96 WS6 Formula: Ram Air, 383 Stroker, Ported LT4 Heads and Manifold, 1.6 Crane Rollers, 58MM T.B., AS&M Headers, Borla Exhaust, Meziere Elec. H2O Pump, Canton Deep Sump Oil Pan, 100 HP OF TNT N2O!! , T56 Conversion w/ Pro 5.0 shifter, SPEC Stage 3 Clutch, Hotchkiss Subframe Conn., Lakewood Adj. Panhard Bar, Spohn Adj. LCA's, BMR Adj. T.A., Custom 12 bolt w/ 3:73's, Moser Axles, Eaton Posi, Moser Girdle
11.6 @ 123mph (1.6 60' - getting there )
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It's too late the car went there around noon today. I'll call tommorrow to get the diagnosis. I may have it brought back home and I'll do it myself if it isnt anything major. The only thing is now that I moved I dont have a garage anymore. doing this on the gravel in the midst of all this rain and cold would not be fun at all. Thank God that we have income tax money.Comment
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IRS has my tax money.Originally posted by jarod
It's too late the car went there around noon today. I'll call tommorrow to get the diagnosis. I may have it brought back home and I'll do it myself if it isnt anything major. The only thing is now that I moved I dont have a garage anymore. doing this on the gravel in the midst of all this rain and cold would not be fun at all. Thank God that we have income tax money.
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Well it for sure was the fuel pump. So off I went to the suto parts store for a new one and took it down to the dealership. The labor is going to be $300.00. I figured that they would get me for more than that. I got there and the guy behind the desk tryed to scare me into paying more money for the repair. He said did you jknow that the rear end has to be droped and the exhaust taken off? I siad "yeah" (ever so sarcasticly!) "That is why I brought it here. I am not doing that in my driveway!" They look suprised as I went on to tell them where to unhook the exhaust amoungst other things. They underestimated me. I am not the average "take it to the dealer for repairs kind of guy!" When it is all said and done I will only pay them for the tow and the $300.00 for the labor like they quoted my wife over the phone. No, not one penny more!Comment
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You go boy!Comment
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