In a nut shell. Gen1/Evo 1 GSR. Md187701 ECU

Car died on the highway, turned over once trying to start then nothing. Just keeps cranking.

Have read countless threads about this being common. To check CAS, ECU, MFI, etc. Having trouble finding all three to swap out.

My situation, when I sit in the car, MFI/DI gold cap is taken off there are the two relays within the MFI. Left relay snaps down upon turning the key one click before ignition. Upon full turn of the key the car just cranks.

*However*

When I depress the right relay with my finger, the fuel pump begins to whir and the car starts, idles and revs beautifully.

So now I am back to being stuck. Can the CAS still be the culprit with the vehicle being able to run beautifully. Have I eliminated or pointed out anything obvious.

This thread seems to indicate that the MFI/DI will *stick* http://www.auslancer.com/forum/viewtopic.php?f=7&t=4404. It isn't stuck though, it just isn't activating in order to engage the fuel pump.

Thanks all!

 

Yes. The cas can still be the problem. The ecu needs to see the crank signal to know the engine is turning over to know to send power to the fuel pump.

That still might not be your problem though.

 

So now to hunt down a 4g63 CAS. we have no old evo's at all up here. Trying to find more common vehicles I could snag one from.

Thanks for the reply J, was hoping I had made big steps now that it was running but back to square one... At least engine bay is pretty much ruled out other that cas.

I am going this second to begin other model searches to locate a replacement CAS but any help would be awesome.

 

All of these it seems......

2001–2006 Mitsubishi Airtrek
1997–200? Mitsubishi Canter
1983-1998 Mitsubishi Chariot
1988 Mitsubishi Cordia
1985–1998 Mitsubishi Delica
1990–1999 Mitsubishi Eclipse
1989–2003 Mitsubishi Galant
1987-199? Mitsubishi L200/Mighty Max
1992–2006 Mitsubishi Lancer Evolution
1993–1998 Mitsubishi Pajero
1994–1998 Mitsubishi RVR
1982–1987 Mitsubishi Starion
1988 Mitsubishi Tredia
Mitsubishi Dion
2004–present Brilliance BS6
1983–1992 Dodge Colt Vista
1987-1989 Dodge Ram 50
1989-1992 Eagle Vista Wagon
1990–1998 Eagle Talon
1987-1988 Hyundai Stellar
1992-1995 Hyundai Elantra
1999-2005 Hyundai Sonata
2000-2005 Kia Optima
1990–1994 Plymouth Laser
1996–1999 Proton Perdana

 

One more question. When I go to change the CAS, I have read a lot about needing cylinder 1 to be at TDC. Can I not just align the new sensor to the same point as the old and put it in. I dont have a lot of experience replacing them.