William A. Watson

:bbb: can I use a JUN Race PM6 ECU 88-91 Integra Civic Crx SI NON-VTEC in my 91 crx? not si. its a dx.

William A. Watson

i just want to know if I can use a civic si crx si ecu in my dx crx

Sharpview

Why would you want to first of all?

However, I'm willing to try this just to give you your answer I have both cars sitting around . . . . but my guess is it will not work. . . . Will try after work if i have time.

kender

I don't remember but if the dx engine is mpfi like the si then it should work.

Sharpview

no dx would be a dual point, this is why i dont think it would work.

William A. Watson

i need to get a new ecu in 91 crx. Cause it starts most of the time. But it don't want to some times . I pull the ecu fuse and wait about 2 mins and it starts after 2 times of doing this. I want to up grade the ecu too.

kender

if you can use a pm6 I have one from my 88si worked perfectly till it was pulled for a b16 swap. pm me

Jay

mpfi ecu is not going to work right in a dpfi car.

91b16si

if it runs it will run like someone shit in your cheerios

Sharpview

I tried it last nite: it did not start, also no dash lights/chimes worked.

"Cause it starts most of the time. But it don't want to some times . I pull the ecu fuse and wait about 2 mins and it starts after 2 times of doing this."

This sounds like Main Relay . . however, if you really think it is the ecu then your pm5's are a dime a dozen . . . .