ive searched in the forums and can't find anything specific to my problem. i have a 90 crx dx w/ a 94 b18b1 in it and i just test-drove it around the shop and it cuts out at wide open throttle. it feels like you are hitting a brick wall but anything less than wide open throttle and it is hauling *****. can anyone give me an suggestions on what it could be? the car has been sitting for a while so tomorrow we are going to drain the old gas and put in new gas
i was also thinking that the stock exhaust was too small for the car and was building alot of backpressure. what do you guys think? should i run open header until i get a bigger exhaust piping


suggestions please

 

up

 

chekc the tps
i had my tps wires crossed and it did this same thing. trace em from the ecu to the correct place on the connector. who did the swap wiring?

i was gonna say dont run open header but i see your in kansas. if you do it it probably wont solve the problem but it might sound cool.

 

a local shop did the wiring job, i did the actual motor swap though. im going to try tracing the wires back tomorrow. today i took the exhaust off and am running open header now. wow is it loud!!! its ok i don't plan on running it open header but for a day or two until i can get it in to a shop so they can do a custom exhaust. now, this motor used to be turbo but has since been freshly rebuilt but i got the ecu that came with the motor and it is chipped. what i was thinking is that the ecu has fuel maps for a turbo motor and as soon as i hit WOT it is flooding the motor ? is this possible?

i was also thinking that my msd blaster 2 external coil was going out. it looks old and beat up

 

my car was doing the same thing and my fuel pump eventually cut out completely. it was one of my grounds that was loose. i forget which... check them ALL.

 

Mehbe the two outer pins on the TPS were not switched as part of the mpfi swap.

 

I went ahead and switched the two outer wires on the tps sensor and it fixed it!! it runs great at WOT now not cutting out or nothing. now i just need to put an exhaust on. open header is giving me a headache!