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Can any one help me my car (r32) idle's fine but when I bring the revs up to 2 grand it starts to cough and blows out black smoke. Already changed the spark pugs, coil packs and ignitor and didnt fix the problem. Also checked for boost leaks and can't find any. Can any one help??

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https://www.sau.com.au/forums/topic/155854-trouble-with-my-rb20/
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Have you got a fuel pressure reg in place atm???

Sounds like the car is over fueling...

Check the vac lines to the standard fuel pressure reg and make sure its not leaking. If you have an aftermarket FPR then check that its not over 25-30psi at idle...

It must be over fueling, you have not changed the injectors at all on the standard ecu or stand fuel maps???

Do you have an safc at all either???

Have you schanged anything recentlly, even degreased the engine???

Could also be a dirty or faulty AFM...

Have you got a fuel pressure reg in place atm???

Sounds like the car is over fueling...

Check the vac lines to the standard fuel pressure reg and make sure its not leaking. If you have an aftermarket FPR then check that its not over 25-30psi at idle...

It must be over fueling, you have not changed the injectors at all on the standard ecu or stand fuel maps???

Do you have an safc at all either???

Have you schanged anything recentlly, even degreased the engine???

Could also be a dirty or faulty AFM...

It has got an Apexi Power FC and 600cc injectors and a 550 walbro in it. It is running 45-50 psi on the malpasi fuel regulator.

Edited by 70YRB
It has got an Apexi Power FC and 600cc injectors and a 550 walbro in it. It is running 45-50 psi on the malpasi fuel regulator.

Have you changed anything receltlly...

Is there a chance that someone may have reset your pfc???

Cause the problem points to over fueling issues...

So we need to look at why all of a sudden its giving the car more fuel...

Check the afm, test with the pfc (look for the correct volatges, refer the DIY area for afm voltages)...

Make sure its not outputting an incorrect figure and also check that the afm is putting anything out...

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