hey, i just finished a b18c5 engine swap into my 94 eg. im using a chipped ecu with a stock type r basemap tune. The car starts but runs very bad, it shakes at idle and seems like its missfiring.

i dont know if this matters but if i unplug my maf sensor it still stays the same, in other words the engine dosnt change sound, i dont know if thats a normal thing.

i just tried a friends 98 jdm type r ecu and it ran the same but with that ecu i was getting 2 codes:

20 Electrical load detector

41 Primary oxygen sensor heater

with my chipped ecu i had no codes

can anyone help me out in any way?

thanks alot

 

Bent valve maybe?

 

I wouldn't worry about the ELD code. however, you may want to replace your O2 sensor.

anyways, from the sounds of it, have you checked your spark? perhaps the plug wires were put in the wrong order on the dizzy? just some suggestions, but it sounds spark related.

 

i checked the spark and its there, double checked my wiring and it seems good. also the engine came out of a running car that ive seen running before pulled and it seemed to run good then

 

Try doing a compression test.

 

MAP and TPS plugged in backwards? Change your O2. Check your timing. ELD is a ghost code.