I have recently replaced my engine with a standard engine no problem, the car will start but wont idle for some reason plus when I take up the revs it kicks smoke out it seems like it is over fuelling as it is not oil smoke, plus it will back fire at low revs, I don't really no where to start??? any ideas anyone

 

check the cam timing first , then check you havnt mixed any plugs up on the loom,its easily done i did it once

 

Could be your map sensor causing it to overfuel. Check the pipe that goes to it is still on

 

hi i have just thought i have a overfueling car and when you say check the pipe that goes to it wat do you mean as i only have a plug plugged into mine no pipe ect

 

the map sensor should have a vacuum pipe going from the sensor up to the inlet manifold,its a short pipe about 8 inches long with almost a 90 degre bend at each end,its vital for your car to run.it connects here on the inlet manifold (see arrow in pic) and the other end connects to the sensor

 

well myne defo dosent connect to my map sensor is this located on the passenger side inner wing do you have a pic of a map sensor fitted to a car if i remember correctly i think the person who i got the car off has connected the pipe from the bit in the pic above on a t peice to the dumpvalce ect so theres nothing connected to my map sensor apart from the connector plug

 

there's a pic of a map sensor fitted in your other thread https://passionford.com/forum/viewtopic.php?t=79357

 

i had thought about the map sensor, but it wont tick over do you think it could be the cold start sensor ? i have now disconnected the pipe from the top of my dump valve and it will just tick over but still over fueling.... i might just blow the f***** up...

 

If the map sensors failed its unlikely to idle correctly due to the excess fuel.

 

stu but why will it idle when the pipe is of the top of the dump valve..

 

The extra air is leaning off teh excessively rich mixture and moving teh load site nearer to 1 bar absolute in teh fuel map.