R33 Gtst Fuel Problems

[TR33GT-001]

Hi SAU Members,

I have an R33 GTST which is, for now, as stock as a rock except for the suspension and handling components.

I have been having an intermittent problem, with what I believe is fuel starvation.

The problem can be described as the spark not igniting any fuel for seconds at a time, when either backing off, or the initial moments of being hard on accelleration.

At times, when backing off to a point where you would accellerate again, the engine cuts.

I have just replaced the fuel filter, iridium plugs, oil filter, air filter and changed the engine oil to Motul Turbolight 4100.

Car was running great for two days, then the issue rose again from the dead.

I've decided not to drive the car, until I can resolve the issue.

Today, I've taken it down to TM Autosports for a fuel system evaluation.

My question is, has anyone out there ever experienced a problem identical to this, and if so, how was it resolved?

Many thanks for the help in advance.

Jim

[mosquitocoils]

I had a similar thing for about a day... I found out the next day I was hitting boost cut at 14psi... needless to say I turned down my boost controller.

I doubt you're having the same problem though.

[payback21]

S1 or S2?

[mosquitocoils]

Having thought about it for longer now, it could be coilpack-related... check your coilpacks and/or spark plugs while you're in there. If they're still the old stock coilpacks in there, it's quite common for them to start failing. There's a DIY method of siliconing up the cracks in the edge of them to help get the spark where it's supposed to go.

Failing that, you would need new (or secondhand from wreckers) coilpacks to replace the faulty one/s.

Could also just be dud plugs.

[TR33GT-001]

S1 or S2?

1997 S2 Anniversary Edition

[TR33GT-001]

Having thought about it for longer now, it could be coilpack-related... check your coilpacks and/or spark plugs while you're in there. If they're still the old stock coilpacks in there, it's quite common for them to start failing. There's a DIY method of siliconing up the cracks in the edge of them to help get the spark where it's supposed to go.

Failing that, you would need new (or secondhand from wreckers) coilpacks to replace the faulty one/s.

Could also just be dud plugs.

Many thanks Mos.

Plugs were replaced with iridium units, and the coils checked out.

I'm gonna keep checking tho.

[mad082]

sounds a bit like a coil pack issue, but could also be an issue with the TPS. you are opening the throttle and the tps isn't registering the movement so isn't telling the ecu to add more fuel.

[TR33GT-001]

sounds a bit like a coil pack issue, but could also be an issue with the TPS. you are opening the throttle and the tps isn't registering the movement so isn't telling the ecu to add more fuel.

Mad,

The issue is still there unfortunately.

The car has perfect Iridium plugs, which are practically new.

I will go the extent of changing the coil packs, and see what happens.

Thanks

Jim