new problem with the '61 tpi
Thread Starter
Racer
Joined: Jun 2005
Posts: 341
Likes: 1
From: Akron Ohio
new problem with the '61 tpi
thanks for all the help with the timing, i have a new problem, the car starts and runs fine but if i turn it off it will not start again unless i diconnect one of the injectors. it does this even after only running for a min or two. all of the new injectors ohm out in the upper 15 ohm range, i think that is within spec. any ideas thanks
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
Yep, that's a good range. I know there new, but have tried starting it with the gas pedal floored? the injector your disconnecting-is it the same one each time? Maybe you should try a noid light on the injectors
and you probably should hook up a fuel pressure gauge too, if it bleeds down to quickly-that will answer the question.
and you probably should hook up a fuel pressure gauge too, if it bleeds down to quickly-that will answer the question.
Thread Starter
Racer
Joined: Jun 2005
Posts: 341
Likes: 1
From: Akron Ohio
the fuel psi. is at 40 when running, and goes up to 45 when the car is shut off, it stays there for at least an hour. i have unplugged four or five diffrent injectors with the same result. i cant test the injectors with the light because they work after the circuit has been broken.
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
You say that you "disconnect" one, but does this mean you disconnect and reconnect? Or disconnect and try to start it disconnected?
Either way, really, I would be sure that the system is properly grounded.
Did you have the ECM flashed to remove VATS?
Either way, really, I would be sure that the system is properly grounded.
Did you have the ECM flashed to remove VATS?
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
The pressure just about eliminates any leaky ones. Didn't understand your last sentence however. Not even sure it would be worth checking with the noid light-just in case though, I beleive their batch fired like my 87, you just plug in the noid light in each injector pigtail-crank and watch it flash. If I remember right this is an 85-right? they don't have the key pellet do they? Bogus might have a point about vats.
Thread Starter
Racer
Joined: Jun 2005
Posts: 341
Likes: 1
From: Akron Ohio
i am using an aftermarket prom and a painless harness, there shouldnt be any vats system active. i am checking grounds, could it also be a power problem holding the injectors in a powered state until i break the circuit by pulling one of the injector plugs.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Ohms at the injector doesn't mean much in my opinion, there's so many other things to go wrong.
I had some pissing a stream of fuel, some flowing nothing at all, and some working properly, but the ohms all checked out fine. None of them were stuck open however.
I think Scorp508 may have run across this problem, check with him..
I had some pissing a stream of fuel, some flowing nothing at all, and some working properly, but the ohms all checked out fine. None of them were stuck open however.
I think Scorp508 may have run across this problem, check with him..
