help

frst when under load between 2500-3000 rpm it shuts down a cylinder and missfires had it on code reader it came up fault code 37 map cicuit fault have fit a new map sensor and checked wiring but all ok

have checked through rest of wiring and sensors and all seem ok has anyone any ideas before we try to source a ecu

ps was chipped but have unplugged it and let it remap itself but still same

many thanks pop

 

HT leads ?

 

Hi mate what spec and boost is the car??

Why was the chip removed???

Sounds like the overboost protection is kicking in with the chip removed

 

its got new plug leads on to eliminate this

its running 6psi because engines running in at the moment from fresh rebuild(was smoking before build but no missfire)

we removed chip to eliminate a map fault


its basically standard now chips removed