Hi every one ,I have a 91 Gq ,manual 3.0 rb30 on petrol/gas.
My car every 50 to 100- ish km will miss on petrol or gas for a second and ignite raw fuel that i presume has been shot straight into the exhaust, then run fine,and generally a few minutes later will do it again then not for another 50 or 100 kms. In between this she seems perfectly in tune and does not miss a beat.This would not worry me so much if it had not blown the exhaust completely apart a week ago scaring the pants off me driving home from work. I asked a few people their advice which steers 2wards being electrical and have done a few things to the car but the problem is still there.
I have only had the beast a couple of months and dont know the history of it but here's what i have done so far...
New lpg converter and relay and solenoid
I had the exhaust replaced and new gaskets in exhaust pipe to manifold.
New leads
New gas plugs
Rotor looks good
New dizzy cap
Tune up
I have followed wiring away from back of coil plug and has a join in it so cut and rejoined and has made no difference.
I have not replaced electric points or coil as advice given to me had been that if they were the problem they should fail more often or pack up completely.
I want to fix this b4 i possibly blow the new exhaust , just don't want to give the car and a blank cheque to a sparky ,with the car only missing infrequently not sure of my chances of getting it fixed.
Any advice from you blokes would be a god send cause i dont really know what to do next
Cheers guys
Baz