the setup:
EF 4 DOOR LSVTEC
ITR PISTONS
ITR CAMS
PR3 ECU (mugen chipped)

okay i'll describe the problem:
after driving it for maybe 5 min, the motor seems to struggle to stay alive. i tried driving it but when i push the gas, it's like it doesn't respond. i turned it off, then i reved it a bit, then as soon as it idel's it again struggles to stay alive. going into first is when it's really going to die, but when i leave it in neutral it's just reving so low and seems like when i push the gas it barely responds. it barely even reved.

anyone help me out. i gotta fix this problem

pics would be great. thanks

-john

 

when is the last time u changed ur fuel filter?

 

Sounds like your Catalytic is clogged.

 

Rostr02 : it's new
slate13530 : i'm open header right now, i still need to line up the exhaust


Modified by JhorickJFL at 5:31 AM 9/8/2004

 

maybe clogged injectors? i had a similar problem w/my ls/vtec, and the injectors were no good. but i'd go through the basics, try to isolate what might be causing that, are you over/under fueling? timing off? wiring cross'd up? cap/rotor/plugs(gapped correctly?) etc... eliminate what you know and go from there.hth

 

your timeing is off a tooth

 

Check your compression

 

now as i press the gas it goes the opposite. it rev's DOWN not up. i'm currently just leaving it in the garage and try reving it, to see what really happens. we tried a pw0 ecu and no diff, no codes, same everything

 

MPFI swap? sounds like you didnt swap the outside 2 wires on the TPS

 

still the same problem,

press the gas it revs downwards then dies

idle it's okay