Just finished with the MPFI swap. Grounds look good. car is a 90 crx dx. running 88 si ecu. I am getting a Code 20. ELD.

What could be the problem? i was thinking that i wired the dist. unit wrong since there was 2 white plugs on there, could've switched them around.

or missed some vaccum lines, or not plugged something in, or loose TB. my idle is at around 1,500 rpm and slowly drops to 1k.

 

bump


anyone have a picture of their intake manifold..need to follow the vaccum lines.

 

TTT

 

what vac lines do you need. The small nipple on the TB goes to map, the rest goes to vacuum from the mani itself. The code 20 should not effect you idle. Usually that code won't throw the cel it just shows up when you check the codes.

 

solved the problem. the vaccuum hose wasn't connected.

do i have to replace the fuse box on in the engine to get rid of that code 20? cuz right after i reset the ecu, code reappears.

 

TTT

i'm going to change my fuse box with one that has ELD to get rid of the Code 20.

oh and the problem is back. idleing at 1.5 then slowly going back to 1k. i did however put fuel injector cleaner in my tank.

i also noticed that my cooling fan is constantly on and the radiator is crazy hot. we put water to compensate the coolant we lost when taking the manifold out. should i do a flush and put new coolant to solve the weird idle?

does anyone have a picture of their intake manifold, i need to recheck my vaccum hose if they are in the right place.