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G60 Rock Crawler
29-10-2006, 09:56 PM
Hopefully someone knows, my RB30 engine is idling very low about 100rpm, foot flat to the floor it goes to about 2500rpm max and sounds like is coughing and as if its running on 5 cylinders, ive disconected fuel lines and its getting plently of petrol.

It also has LPG, and LPG works fine, just petrol dosnt??

Ive looked on commodore forums, and seems fairly common, but have played with it all day, and is the same. They mention air flow sensor or oxygen sensors. But cant see why these would be effected by installing a stereo.

It was running fine, when I disconnected power and fuses then it started doing this:( , i disconnected fuses and power as it just got it and was "exploring" and working on the stereo.

G60 Rock Crawler
29-10-2006, 10:05 PM
oh, forgot to add if I disconnect air flow sensor, it goes OK but still like its missing and will drive, but idles very very low and cuts out if you dont keep up the revs:(

beas3805
01-11-2006, 10:01 PM
is this the rb30 carby motor (gq patrol) or rb30 motor fuel injection (skyline, vl commodore)? if it were fuel injection motor wud probrably be crank angle sensor

G60 Rock Crawler
01-11-2006, 10:19 PM
Its VL so Fuel injected, have found now Injectors are clogged, and think all the sensors and stuff are dodgy, including body, suspesion, running gear, im not stressing though:ranting:

ITS A FORD NOT A NISSAN
01-11-2006, 10:21 PM
should have got a ford lol