bleedblue94

just swapped an ls in my friends car and everything is great except that whenever the car is at 100% throttle it cuts out...if the throttle is open 95% its fine. motor runs very strong. i have replaced the plugs and wires opn the car, and the main target i thought for this problem would be the tps. well i rechecked it and its at .5v at idle and 4.41 at wot.

this is an obd1 b18b in a 94 civic

sohcvtec1995

did it through any codes? and when you sy cuts out is it like fuel cut or like something else? al;so what ecu did you put in there?

termi

im no expert but would this perhaps have soemthing to do with the fuel pump?

bleedblue94

its the obd1 p75 ecu

and no its throwing no codes

sohcvtec1995

Fuel pump may play a roll in it.. I mean it dosent sound like the timing is bad. sounds like a sensor but you said that you checked them, and plus theres no codes..hmmm my next guess would be Fuel Pump..

bleedblue94

ok thanks yeah its a cx with the stock pump...that may explain it bc otherwise it runs terrific