deleting cold start injector on a 1988 5.7 tpi
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Junior Member
Joined: Sep 2010
Posts: 9
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From: north carolina
Car: 1988 iroc-z
Engine: 5.7 tpi
Transmission: 700 r4
Axle/Gears: 3.27
deleting cold start injector on a 1988 5.7 tpi
rather than replacing a bad 9th injector,what is best procedure to delete it? can I just unplug it and run a 1989 prom chip or reprogram mine?
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: deleting cold start injector on a 1988 5.7 tpi
Correct ( so long as it is electrically bad and not leaking fuel.)
Disconnect the connector from the CSI switch ( the brass hex head unit shown below ) at the front of the intake and it will never run again
If the CSI is leaking fuel then you need to remove and plug the line to it from the end of the rail
Disconnect the connector from the CSI switch ( the brass hex head unit shown below ) at the front of the intake and it will never run again
If the CSI is leaking fuel then you need to remove and plug the line to it from the end of the rail
Joined: Dec 2004
Posts: 16,747
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: deleting cold start injector on a 1988 5.7 tpi
If you are wanting to go with the $6E 89 Programing send me a pm I can assist you with the change.
http://www.ebay.com/itm/Chevy-TPI-SBC-Cold-Start-9th-Injector-Block-Off-Delete-Kit-/380643829414?pt=Motors_Car_Truck_Parts_Accessories&hash=item58a023e6a6&vxp=mtr
http://www.ebay.com/itm/Chevy-TPI-SBC-Cold-Start-9th-Injector-Block-Off-Delete-Kit-/380643829414?pt=Motors_Car_Truck_Parts_Accessories&hash=item58a023e6a6&vxp=mtr
Junior Member
Joined: Apr 2013
Posts: 25
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From: Dallas, Tx
Car: 88 IROC
Engine: 305 TPI
Transmission: 5 Speed
Re: deleting cold start injector on a 1988 5.7 tpi
I have an 88 305 and the CSI senor/switch in the front of the block, is not there. Plugged/removed/or engine swap from previous owner I have no idea.
My question is with nothing plugged in would I still need to disconnect the wires to the 9th injector, or since there is no temp signal will it never fire?
Matt
My question is with nothing plugged in would I still need to disconnect the wires to the 9th injector, or since there is no temp signal will it never fire?
Matt
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
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Posts: 877
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From: Clark NJ
Car: 1988 Pontiac Transam GTA Notchback
Engine: 2003 Chevy 5.3 Vortec (325 cu)
Transmission: 4L60E
Axle/Gears: 3.27
Re: deleting cold start injector on a 1988 5.7 tpi
What would happen if you run a 1989 350 memcal with a 1988 350 engine and NOT delete the cold start injector. I am asking because I did this and my car kept stalling.
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