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Car will not start unless fuel pump unplugged first
then re-loading it would have fixed the issue (it didn't). With my new revised tune (reduced cranking fuel) cars starts up perfectly. If I re-load my original dyno tune from a year ago, it goes back to refusing to start. Re-load my new revised tune and it starts up perfectly.- efnfast
- Post #12
- Forum: RT/10 and GTS Discussions
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Car will not start unless fuel pump unplugged first
I know - it's all very weird. The initial adjustments Torrie made pulled back startup fuelling a little bit, which meant that instead of having to hold the pedal to the floor to restart it I could just feather it and it would start. He made additional startup fuelling adjustments and now it...- efnfast
- Post #10
- Forum: RT/10 and GTS Discussions
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Car will not start unless fuel pump unplugged first
No difference So far what I've found is that on cold and semi-cold starts there is no issue (fires up right away). Once water temperature is around 100*ish or so, then it will just crank and no start. If I floor it while cranking it starts up immediately (initially thought this meant I was in...- efnfast
- Post #8
- Forum: RT/10 and GTS Discussions
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Car will not start unless fuel pump unplugged first
Some progress today, I'm just not sure what it means. Car sat overnight. Started up on first crank, idled fine. I did on/off several times, no issues. Drove it up/down my driveway then off/on several times, no issues. I let it warm up to just before the fans turned on, no issues...- efnfast
- Post #6
- Forum: RT/10 and GTS Discussions
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Car will not start unless fuel pump unplugged first
Does a gen 2 viper have a clear flood mode? I.e., press the gas pedal to the floor and the injectors won't fire when cranking the car?- efnfast
- Post #4
- Forum: RT/10 and GTS Discussions
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Car will not start unless fuel pump unplugged first
It idles fine and fuel trims look fine so I don't think it's a vaccum leak. Last times I've had vacuum leaks either the idle was super high and/or short-term fuel trims were really off (like +/-25%). And all hoses are connected and visually look fine Ground doesn't make sense because the...- efnfast
- Post #3
- Forum: RT/10 and GTS Discussions
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Car will not start unless fuel pump unplugged first
2001 viper w/ built engine and paxton. Fuel system is double RSI in-tank (2x walbro 267), external Weldon regulator, 80lb bosch injectors. Car was dyno tuned by Torrie ~2yrs ago (HP Tuners + stock ecu) and has run flawlessly since but today decided to "break". If I try to start the car it...- efnfast
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- Replies: 18
- Forum: RT/10 and GTS Discussions
