Cold Start injector
Thread Starter
Drifting
Joined: Jul 2001
Posts: 1,595
Likes: 0
From: Chino Valley AZ
Cold Start injector
I am not sure if that is the right name for it, but it is located off of the rear of the fuel rail and comes around to where the intake joins with the motor.
I am wondering what that is for and if it can be blocked off from the fuel rail. The reason why I ask this is that there is fuel leaking and I can not get it stopped.
I live in a hot climate, so I am wondering if I even need this working.
Thanks for the help!!!
:confused:
I am wondering what that is for and if it can be blocked off from the fuel rail. The reason why I ask this is that there is fuel leaking and I can not get it stopped.
I live in a hot climate, so I am wondering if I even need this working.
Thanks for the help!!!
:confused:
Melting Slicks
Joined: Aug 2001
Posts: 2,516
Likes: 0
From: Lockport NY
Re: Cold Start injector (kghott)
Going from the left (driver) side rear of fuel rail to about the middle of the manifold, next to the hold-down bolthole??? Yep; that's it.
No, you shouldn't need it. GM did away with them a couple years later. Accel makes a ~$59 kit (#74820) to block it off, but good luck finding one...
You might need to disable it in the EPROM, also (not sure about that, but I think so).
No, you shouldn't need it. GM did away with them a couple years later. Accel makes a ~$59 kit (#74820) to block it off, but good luck finding one...
You might need to disable it in the EPROM, also (not sure about that, but I think so).
Safety Car
Joined: Jun 2000
Posts: 4,870
Likes: 25
From: Long Island, NY
Re: Cold Start injector (kghott)
You can block it off, but you might experience harder starting in cold weather.
In later TPI's, the Prom controls the additional fuel needed for start up.
Vic
In later TPI's, the Prom controls the additional fuel needed for start up.
Vic
Drifting
Joined: Dec 1999
Posts: 1,319
Likes: 2
From: Douglasville GA
Re: Cold Start injector (kghott)
The cold start injector is NOT ECM controlled at all. There is nothing to "turn off" in the ECM prom to remove it. Actually, if you live in a cold climate, you have to "turn on" the prom, ie, modify it to supply extra fuel when doing a cold start.
The cold start injector is controled by a thermal time switch. It is located on the front of the intake manifold, right by the ECM coolant temp sensor. If cold enough, this switch will turn on, and stay on for a specified length of time, hence "thermal time" switch.
Tom Melton
82 CE
86 Z51 Coupe
The cold start injector is controled by a thermal time switch. It is located on the front of the intake manifold, right by the ECM coolant temp sensor. If cold enough, this switch will turn on, and stay on for a specified length of time, hence "thermal time" switch.
Tom Melton
82 CE
86 Z51 Coupe
Thread Starter
Drifting
Joined: Jul 2001
Posts: 1,595
Likes: 0
From: Chino Valley AZ
Re: Cold Start injector (tommelton)
Just to update this. I took out my cold start injector and blocked it off. The car has to turn over a couple of more time to start, but not bad at all. No more fuel leak to worry about and seems to be running well.
:smash:
:smash:
