Rb20det Wont Keep Running

[sneaky1]

hi. i was driving the car the other day and it backfired and that was the end of it. i heard it backfire through the zorst but not the intake. was changing into second when it happened. earlier that day it sat on the dyno and got boosted upto 14psi with the 25 turbs.

the car got driven about 50km after that. took it home for an hour then went out again. about 3 min into that drive i gave it a heavy boosting and it backfired on the gearchange to second.

now the car either wont start or will start really rough and then die a max of 10sec later. usually 2 sec.

ive swapped the ecu with stock 32 ecu with no luck. also put my remapped on in his and his run fine.

changed the air flow meter.

pulled out spark plugs and plenty of spark.

changed back to the original fuel reg.

visual inspection of fuel pump.

pulled off fuel line and heaps of fuel from pump while priming.

changed the ignitor

run it with afm unplugged.

also found that when i turn the engine on that the ecu red lights comes on for only a split second then off. when i first crank the car its on for a split second and then when i turn the car off the ecu light flashes for a split second again about 5 sec after ignition off.

also when the car does start its running as rich as hell. leaving a thick cloud of black smoke (fuel) in my shed.

when it was dynoed it was running 11-1 fuel ratio so still had heaps of fuel. but had a glitch at about 5k where it dipped about 30rwkw and then straight back into it. maybe knock sensor.

the ecu bothers me as i know with my mates ecu the red light stays on.

does anyone know what the hell is goin on??

[lachlanw]

its called cel codes . or error codes . thell tell you exactly what you want to know

[BlueRB240]

Sounds like whats happening to mine. Have you tried pulling the brake booster vacuum line and seeing if it will fire up and idle?

[TurboX]

I would be looking for a air/vacuum hose loose or split though it is rich. Check the timing as well asap.

[sneaky1]

just thought id let you all know i have found the problem

it was timing. i have snapped the lug off of my cam gears. which left me with no constant timing

thats why it would take ages to start and then just die when it did.

was a massive head f*k with what i replaced.and draining a few charged batteries.

thankgod i have spares laying around. no cost spent YET.

ty for those who had good imput.

[sneaky1]

sorry got it wrong. the lug or keyway is actualy on my exhaust cam. so i now have to replace my cam to fix the prob.

great