ok here is the deal. i have a 1990 civic std d16y5, supercharged running 7lbs of boost, chipped pw0 with BRE, 450cc dsm injectors, walbro 255 fuel pump. i got a new alternator new fuel filter. here is the damn issue. before the car was supercharged it ran good. i put the jackson on and went to school in ohio and while i was up there it was tuned, so i was not here for the tuning session. i was called and told the car ran good and had no problems except at high speeds cause of the stock fuel pump. so i thinking it was the problem i replaced the fuel pump. when the car is cold it runs fantastic but as it warms up and i gradually hit the gas when it gets around 3k it cuts out and stalls if i keep on the gas, now if i let off it will start to idle and not bogg out till i hit the gas and it gets to 3k again. i do not have a clue what the issue can be weather its the iacv or any other sensor that acts weird when the car heats up. it just sucks cause i am only down in fl every 3 months and i havent been able to drive the car for a year due to this gay issue. if anyone has any idea what could be causing the car to run like shit after it heats up please let me know. thanks

 

also i have changed the main fuel relay a with a few different types still no fix. i dont know if it has something to do with a fuel cut off or somethign i have checked fuses and everythig still no fix its just getting old and i need it fixed.

 

sucks to hear that... who tuned your car?
who built it?

 

the car was tuned by john salero and the motor is a stock d16y5 it sucks i just want to fix the damn thing i havent been able to drive it for a year almost now. i dont know if the map sensor could be tripping out or something i just took it for another drive it will ride fine till you get to high rpms than it starts tricking out and stalling and such. i am getting fed up of the damn thing. i just put a pr4 obd0 ecu in the car and it woulnd start thats kind of weird cause before it was tuned i put the pr4 in there and started it to see if i did it all right and stuff and it ran. now when i put the pr4 in there it doesnt run. it runs with the pw0 just fine.

 

O.

P.S. I love the Y5. I was this close -->.<-- to building Y5 instead of Y8. For REAL! E-VTEC (Extreme VTEC, don't let anyone fool you)

 

^well, start off with the basics, replace cap/rotor, fuel filter, plugs, wires. do the basic things first, they probably need to be done anyway...

 

ive done all those i didnt mention them but they are all done. brand new

 

Any other ideas?

 

try a whole new dizzy?? or ecu??