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85 vette prom issue
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bdiener
New User
| Posts: 1
| Joined: 06/09
Posted: 06/02/09
01:40 PM
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i had a 383 motor built it has548hp on engine dyno with a carb. motor is now in the car with tpis mini ram and fi , i have had 2 chips burned and car is still not running well backfires through intake and at full throttle rich , any ideas frustrated in milwaukee looking for a tuner in my area. bdiener@wi.rr.com
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Posted: 06/03/09
07:32 PM
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a lot more info is needed...i take it that you are running the factory fuel injection system with a different intake... (TPIS MINI RAM).... got all the circuits hooked up??? Coolant temp sensor, air charge temp sensor, 192 thermostat, maf sensor. oxygen sensors... got the air injection system on the car???? is the diverter valve leaking air into the exhaust manifold piping.??? that will dilute the exhaust stream and make it run weird..
how is the throttle body?? is the shaft bore worn???? they are on many ????? if original fuel injection system... do you have a scan tool to look at the live data... or a lap top to look at it... so many things....
and did you get every ground wire installed... and verified that it is properly connected with an ohm meter between the ecm connector and the engine block with long test leads...
hows the fuel pressure. got good pressure i have had the pumps crack and leak pressure back into the tank...
and.. did you install larger flow fuel injectors... and how much larger...
are all the injectors actually connected and spraying??? not clogged...
no holes in the air ducts between the maf sensor and the throttle body...
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