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Renix Crank, semi starts and dies.

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Old Sep 24, 2012 | 07:37 PM
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Gorillaxj's Avatar
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From: Salt Lake City, UT
Year: 2000
Model: Cherokee
Engine: 4.0L
Default Renix Crank, semi starts and dies.

HELP! lol need some Renix advice! So I went and looked at an 89 Renix today(a buddy's), scratching my head over it pretty bad. At first is had no spark, replaced the ignition control module and coil. Now has spark, at the coil, at the plugs, then it back fired, found the distributor out of time. Reset timing on the distributor. now everything is in time. has good spark, removed the rail and watched the spray patterns and fuel come out of the injectors, has fuel coming out all 6 injectors. CPS is new, Checked the Cam sensor (its working), replaced the map sensor, has a new fuel pump, has good plugs, wires, cap, rotor. all grounds are good, fuses are good. Fuel pump ballast resistor is bypassed and pump is on toggle (is pumping). Crimped off fuel return line to boost pressure and eliminate fuel pressure regulator. No change still wont run. Checked for power/ground at injectors (even thought hey do spray in timed pattern when rail is backed off an inch or two) injectors have power/ground and do pulse when cranking.
have tried a different renix ecm. Still wont start....

It will Crank and start for 1-3 seconds then sputter out. If I spray carb cleaner in the intake it will continue to run as long as I spray it, then it dies.

Any ideas? I am leaning towards it dropping the injector signal 1-3 seconds after start, or ecm. and the ecm didn't make a difference because timing was off (180* out)

I am car savy, but not Renix inclined LOL
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