JDM.EG

so i just did a b20b swap in to my hatch, the car already has a fule pump problem where the fule pump doesnt turn on when i turn the car on. but now when i drive and it warms up and after it is warmed up if i ever let it idle for any long amount of time the heater will be on but then start blowing cold air out then the car drives like ***, i press on the gass and it makes a cutting out sound and revs high but has to fight just to get to 25mph and will only run a little less like *** in 4th gear. also the temp gauge doesnt move at all just stays midway in between hot and cold. after about 5 minutes of driving like *** the car will die or drive fine but the check engine light will come on....so am i about to blow my engine? and how do you fix this?

JDM.EG

help

Bennyboy1717

i have a built y8 in my hatch with a p73 jdm itr ecu. . . mine had trouble running after it warmed up with no check engine light . . . after tinkering around for a while i tried just unplugging the o2 sensor . . . check engine light is on now but car drives great . . . my conclusion the heater circut of the o2 was bad but it was still reading thats why it never threw a CEL. easy thing to try if you want to

JDM.EG

ok thanks but know any thing about the fact that it wont go faster then 25 but still rev high and cut out?

KevinBrown

iTrader: (2)

First step: Check the code.

JDM.EG

it goes away after i shut the car off or just goes off at random

Bennyboy1717

you have to check it as soon as it comes on lol . . . search HT and look it up and just do the jumper unless you carry a scanner with you . . .

supra-n-civic

or it oculd b that your runnign a terribl motor to ecu combo. why would you us a dohc ecu on a **** single cam. thats why its running terrible