It Wont Kick Over

[OMG513]

Hey guys,

My brother just recently got an r33 up in qld (highly modified), being him not very understanding towards modified sports cars are like, he started up from where he bought it, drove about 30 secs, gave it a hit in first (not to redline), changed to second gave it another hit then..... whrrrrr.... power started to cut then stall. So he tried to start it again, it cranks but dosent kick, so his mate gave it a go and cranked, cranked, he gave it a little gas, crank then..... BANG! a loud backfire like shotgun cameout. Car wont start still. Anyone have any ideas? Thanks

P.S Fuel pumps still prime

Cheers

Ken

[bish33]

sounds like its overfueling could be stuffed afm??

[neo32]

could also be blown coooler pipe

[rob82]

AFM doesn't get referenced in PFC or std ECU on crank so it should start then stop if there where AFM issues.

To me it sounds more like an ignition issue - as the bang is usually the spark plug firing with the exhuast vavle open.

Let me guess - haltech ECU?

[OMG513]

Yeah i think it might be an ignition issue as well.

Nope its a microtech

AFM doesn't get referenced in PFC or std ECU on crank so it should start then stop if there where AFM issues.

To me it sounds more like an ignition issue - as the bang is usually the spark plug firing with the exhuast vavle open.

Let me guess - haltech ECU?

[mad082]

yeah sounds like an ignition problem. could be anything from shagged CAS to a busted cam or just the timing belt jumping a tooth or 2

[J'z-R33]

Check your intercooler piping. most likely a silicon joint has blown off when your mate gave it a bit of gas

[OMG513]

Cool thanks for all the replies. I'll try get it down to the mechanic and see what they say.

Cheers

Ken

[shaunvlc]

a blown intercooler pipe will not stop the car from running, it will only stall the car when under boost. I know this because it has happened to me numerous times before. The car will drive fine if you baby it. However, I think the problem with your situation is a bit more extensive than a loose cooler pipe. You going to have to search for any obvious problems and if you cant find anything then I would probably not stuff around and take it to a mechanic to get checked out.

[boostn32]

its ignition, the bang is unburnt fuel in the exhaust exploding, remove all coil packs and plugs, check plug tips for fouling, sthey should be a dark grey colour,

check all connections on coil loom including earth. check for out put from cas and ignitor while cranking engine.