ts about a year old. I replaced it about a year ago with a lingenfelter one. Anyway to test it to see if its good?
Hot Start Problems
Thread Starter
Racer
Joined: Sep 2002
Posts: 420
Likes: 1
From: SAN DIEGO CA
Hot Start Problems
I have a 1986 corvette with a 383 stroker in it. I have been having a hard time with hot starts. When its cold it starts up on the first click of the key. When its been sitting for about 10 minutes its hard to start unless i press on the gas till it catchs. The motor will rev up and down till it smooths out in a couple of seconds. I've gone through 3 sets of injectors and have had the same problem. All the injectors have been flow tested for leaks, the rail has all new o-rings, the fuel filter and pump have been replaced, including the fuel hoses. The engine has the Superram intake and Plenum so I had to get the computer reburned to compensate for the cold start injector. I have no codes and pretty much everything except the block is new. Is there less fuel when the car is hot or is there too much fuel being injected? Maybe my chip was not burned right? I have had this problem for awhile and it gets embarrassing when i have to start the car around people! I have the SVO Ford injectors in right now. I used to have Accel injectors. I have a new MAF and most of the sensors have been replaced. Any help would be greatly appreciated. 
Drifting
Joined: Mar 2005
Posts: 1,923
Likes: 0
From: GA
If you aren't getting black smoke when it does finally start, you don't have too much fuel...probably not enough. The crakn P/W vs coolant temp can be changed on the prom but it will probably take several burns to get it where you are happy with it.
Thread Starter
Racer
Joined: Sep 2002
Posts: 420
Likes: 1
From: SAN DIEGO CA
Chip Burning
I'm also thinking it has something to do with the chip because I went over the car a thousand times. I had the chip burned by Ed Wright so should I send it back to him or someone else. Do I need to request a special procedure with the chip? Should I send the Dyno sheet I had done last year?
Instructor
Joined: Nov 2003
Posts: 126
Likes: 2
From: Belmont MI
It could be your pick coil on the distributor. The Haines manual has a diagnostic for this to tell you if its good or not. The part is about $16.00 from Autozone. My '85 had similar warm starting problems and this was the problem. I searched and thought injectors as well, but the test was very conclusive that the pick up coil was the problem. Has been fine ever since.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by PMARTINEZ92126
Is there less fuel when the car is hot or is there too much fuel being injected? Maybe my chip was not burned right?...
I have the SVO Ford injectors in right now. I used to have Accel injectors.
I have the SVO Ford injectors in right now. I used to have Accel injectors.
Does the fuel pump run for two seconds when the key is first turned to the "ON" position?
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Thread Starter
Racer
Joined: Sep 2002
Posts: 420
Likes: 1
From: SAN DIEGO CA
Injectors
I had the same problem with the Accel as with the Ford injectors. The computer was programmed with the Ford injectors. Do you think buying one of those little fuel pressure gauges for the fuel rail would help in seeing if the fuel pressure is dropping? If so, what should the pressure be and how long should it stay that way before it goes down? I can hear the fuel pump energize the system when I start it up in the mornings.
Le Mans Master
Joined: Dec 2004
Posts: 5,789
Likes: 8
From: Myrtle Beach SC
St. Jude Donor '05-'06
Originally Posted by PMARTINEZ92126
I had the same problem with the Accel as with the Ford injectors. The computer was programmed with the Ford injectors. Do you think buying one of those little fuel pressure gauges for the fuel rail would help in seeing if the fuel pressure is dropping? If so, what should the pressure be and how long should it stay that way before it goes down? I can hear the fuel pump energize the system when I start it up in the mornings.
If your FPR has the vacuum line on it pull it from the intake and see(smell) if there is gas in the line if so it is bad.
Last edited by Redeasysport; Jun 21, 2005 at 09:54 PM.
