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#1
11-08-2007, 11:28 AM
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93 bonneville ssei falls on face when you touch gas pedal
I have a 93 bonneville ssei 3800 v6. 177k miles. Hesitates on startup, When it does start it runs fine until you touch the gas.....then it spits and sputters almost like its running on only a couple cylinders. Sometimes it kicks in and out(I.E. drives good for 10 seconds then falls on face again) I've replaced coil packs,computer and prom. Checked fuel pressure at rails,egr,tps,crank sensor,ground cables,.....possible bad Ignition control or cam sensor???? I'm out of idea's after that.......(((Any advice would be greatly appreciated))).
Last edited by blaskobizkit2; 11-08-2007 at 11:30 AM. Reason: forgot item 
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#2
11-08-2007, 01:47 PM
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Re: 93 bonneville ssei falls on face when you touch gas pedal
Did you actually put a fuel pressure gauge on it, or did you just push the schrader valve and observe fuel squirting out? The most common cause of your issue is low fuel pressure or a defective TPS.
__________________
 Still waiting for the "good old days" I'll get to bore my future grandchildren with!
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#3
11-08-2007, 10:03 PM
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Re: 93 bonneville ssei falls on face when you touch gas pedal
Check the intake plenum for holes. I have a 93 and mine did the same thing I replaced every electical part under the hood and it ended up being a small hole in the back of the plenum causing a vacume leak. You can check by hooking up a vac gage, and at idle you should have about 17-20 lbs of vac.
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#4
12-19-2007, 11:21 AM
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Re: 93 bonneville ssei falls on face when you touch gas pedal
Got it.Turns out it was a faulty Ecm from the auto parts store......But thanks for the info
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