Diacom???'s
Thread Starter
Melting Slicks
Joined: Sep 1999
Posts: 3,155
Likes: 8
From: Hendersonville TN
Diacom???'s
I have not used Diacom in a good while, I have a no start problem going on with my 89. Already replaced the fuel pump,plugs, and fuel filter, now there is a problem with one or more injectors as to leaking. Next on list is to replace them. I am trying to see if Diacom will help out with checking anything else that might cause this problem. The car will start if I spray starter fluid into the TB but it runs horrible this way but it stays running. Any ideas would be helpful..
TIA
Brett
TIA
Brett
Last edited by Brett Richmond; Oct 15, 2006 at 12:15 PM.
Thread Starter
Melting Slicks
Joined: Sep 1999
Posts: 3,155
Likes: 8
From: Hendersonville TN
Originally Posted by Casethecorvetteman
Coil, ignition module, distributor cap, rotor, and the carbon contact. Check all that if you havent allready 
All have already been replaced. I just find it hard to believe the injectors alone could cause this?
Melting Slicks
Joined: Apr 2002
Posts: 2,118
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From: St. Charles, MO Route 66 Corvette Club
Brett: Check you injectors (remove harness connector) with an ohm meter. All injectors should be very close to the same reading and be somewhere in the 16 to 17 ohms. Check 'em cold and hot ..... if the engine will run that long 
The 89 model seems to have a lot of injector issues with the stock units. The coils short out and this will not place a fault in your ECM. I learned all this the hard way on my 89.
The 89 model seems to have a lot of injector issues with the stock units. The coils short out and this will not place a fault in your ECM. I learned all this the hard way on my 89.
Advanced
Joined: May 2006
Posts: 59
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From: SPRUCE GROVE ALBERTA
If your injectors are leaking, it will flod the engine... my 90 had this problem and had to wait about 45 minutes if it did not start right away... it also back fired when decelerating. Issue was resolved after injectors were replaced.
Might not be yor problem but it will act like a flooding situation if they are leakign bad.. but should eventually start.
Might not be yor problem but it will act like a flooding situation if they are leakign bad.. but should eventually start.
Melting Slicks
Joined: Oct 2000
Posts: 2,158
Likes: 9
From: N.E. WA
It seems to me that if the car will run with starting fluid that your ignition may be fine. You also say that you replaced the fuel filter/pump, but do you know what your fuel pressure is? Is the pump running? If the pump isn't running or you don't build pressure with the key on, then maybe it is your fuel pump relay or ECU. Just another thought. Good luck!
