#1NISMO

i have an 89 dx crx that i did a mpfi swap on a while ago but it has never been started or ran since. Im using a 91 pm6 ecu that has not been chipped yet and have used 3 difference mpfi distributar's 2 known functionable. Im throwing codes 10 and 20. i know the motor is good . I just get absolutly no spark what so ever. i have no idea whats gone wrong plz help......... o and ive gone over the wiring a million times and i sodlered all connections

Slo_crx1

Bad main relay maybe? Try pullin the relay out from under the vent on the driver's side there and resolder all the connections on the back of the board. Alot of times this is why 88-91's don't start, or start intermitently. Worth a shot if nuthin else.

drupie51013

is your sparkplugs fried?

#1NISMO

the spark plugs were working in the other car and even when i put a brand new plug in there is absolutly no spark so i dont think its that..

NCHATCH

have you tried the "2 white wire swap" on the dizzy, i know certain years require this

#1NISMO

actually i havent i think/ hope thatsit i didnt think that caused complete loss of spark though i will def try any other ideas?

mycrx

code 10 is air intake temp sensor
code 20 is electrical load

im guessing you didnt wire it right, check all your points on the ecu and make sure they working. if it ran before then its something that youve done in the wiring. check it with a good known write up.

#1NISMO

what pionts should i specifically check on the ecu? like is there any that i can check at the ecu with a multimeter?

mycrx

get the obd0 pinout and see which wire goes to what plug and pin. just search google its on there.

d16u7nh

funny i did the swap two weeks ago and too throwing 10 and 20. i also have no spark. let me know what you find out. thanks