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04-08-2012, 02:59 PM
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#1
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Join Date: Dec 2008
Location: dorothy,NJ
Posts: 38
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ignition or fuel
My car at full throttle will cut out if you mash it to the floor. Cruising is fine. Almost like some one is hitting a kill switch and turning it back on. Has new fpr, fuel filter, cleaned mass, I don't know where to start any one else had this issue? Also it comes and goes sometimes it pulls hard all the way, and than sometimes as soon as it gets to 4000 it does it.
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93 z28 sold. 96 formula: custom tune, MSD, longtubes, performance pulleys, pacesetter Ory, Slp lm1,1.6 rockers, Moroso intake, Bmr/hotchkis/slp suspension, 4:10 gears, full built trans, Z06 rims.
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04-08-2012, 03:11 PM
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#2
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11 Second Club
Join Date: Feb 2008
Location: Edison, NJ
Posts: 4,619
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Could be pump failing or ecm problems.
I had a situation like this...the battery cable would touch the body when the engine moved...
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1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
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04-08-2012, 03:22 PM
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#3
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Join Date: Jul 2009
Location: barnegat nj
Posts: 1,340
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sounds electrical to me...but start with putting a fuel pressure guage on it & see if fuel drops drops when problem occurs.
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Quote:
Originally Posted by SRGN
I never pulled into the staging beams at the track and saw a dyno in the other lane.
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South Jersey Racecraft
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04-08-2012, 04:40 PM
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#4
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Join Date: Dec 2011
Location: 07747
Posts: 521
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do you have cats.. my car did this and it was a o2censor ,, if you dont have cats the o2 censor tells the computer you running to rich
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 SHADOW
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04-08-2012, 08:58 PM
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#5
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Join Date: Dec 2008
Location: dorothy,NJ
Posts: 38
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No cats. But I got a pcm for less tune. Brand new o2s
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93 z28 sold. 96 formula: custom tune, MSD, longtubes, performance pulleys, pacesetter Ory, Slp lm1,1.6 rockers, Moroso intake, Bmr/hotchkis/slp suspension, 4:10 gears, full built trans, Z06 rims.
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04-09-2012, 07:30 AM
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#6
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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Definitely do as said and drive with a fuel pressure gauge on the windshield or somewhere you can watch it. If it drops off when the problem occurs, I'd get a fuel pump.
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04-09-2012, 08:06 PM
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#7
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Join Date: Dec 2008
Location: dorothy,NJ
Posts: 38
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havent had time to do fuel press check yet but i noticed tonight with windows down when it cut out smelled a gas odor
__________________
93 z28 sold. 96 formula: custom tune, MSD, longtubes, performance pulleys, pacesetter Ory, Slp lm1,1.6 rockers, Moroso intake, Bmr/hotchkis/slp suspension, 4:10 gears, full built trans, Z06 rims.
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