88 - Cold Start Injector?

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Feb 7, 2006 | 09:42 AM

Fork501

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Racer

Joined: Jul 2005

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From: Weston Fl

88 - Cold Start Injector?

I have heard that the '88 has a cold start injector. However, I am not sure that mine has one. It was to my belief that a cold start injector was a 9th fuel injector, attached to the fuel rail? I only have 8 injectors on the rail.

Am I right or is the injector somewhere/something else?

Thanx in advance!

~Derek

Feb 7, 2006 | 09:47 AM

CoffeeDrip

Racer

Joined: Feb 2004

Posts: 334

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From: Fl

It would be on the drivers side of the intake manifold between the runners. The fuel line for it comes off the back of the fuel rail.

IIRC 89's didnt have it. But anything earlier did.

Feb 7, 2006 | 09:48 AM

Fork501

Thread Starter

Racer

Joined: Jul 2005

Posts: 397

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From: Weston Fl

Quote:

Originally Posted by CoffeeDrip

It would be on the drivers side of the intake manifold between the runners. The fuel line for it comes off the back of the fuel rail.

IIRC 89's didnt have it. But anything earlier did.

ooo! Ok! That makes more sense, then. I know which that is!

Thanx!

~Derek

Feb 7, 2006 | 10:15 AM

Demonic85

Team Owner

Joined: Feb 2006

Posts: 24,460

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From: sw Ohio

So what exactly is the benefit of having this cold start injector?

Feb 7, 2006 | 10:29 AM

MrRenoman

Melting Slicks

Joined: Jul 2003

Posts: 2,384

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From: Reno/Sparks Nevada

Quote:

Originally Posted by 4Ever21

So what exactly is the benefit of having this cold start injector?

It's like having a choke on a carbureted car. I'm sure someone could explain exactly how it works. Unless I have my factory service manual in hand I'm not going to attempt it. There are the techno geek wizards on this forum that have broken many keyboards banging and pounding on the keys because they cannot type fast enough to keep up with their frustration due to lack of techincal understanding of the less fortunate. It's very entertaining though. I wonder if the spelling and grammer czars are cringing in their seats reading this post? Hmmm, I love this place.

Last edited by MrRenoman; Feb 7, 2006 at 10:32 AM.

Feb 7, 2006 | 10:32 AM

Demonic85

Team Owner

Joined: Feb 2006

Posts: 24,460

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From: sw Ohio

Thanks, and yes I understand how the choke works on a carb car. I just never thought a fuel injected car needed a choke for fuel intake.

Feb 7, 2006 | 10:32 AM

CoffeeDrip

Racer

Joined: Feb 2004

Posts: 334

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From: Fl

It does exactly what it says. Injects more fuel upon cold start. Injecting more fuel at startup to richen the F/A mixture for easier starting.

In extreme cold weather conditions, this is helpful, like the coolant going though the TB. But in warmer climates. It is just a waste of fuel.

Once I get the 85 up & going. I'm switching to a 89 ECU. Easier to work with & no CSI.

Feb 8, 2006 | 12:19 PM

DarkBlue88

Pro

Joined: Oct 2005

Posts: 721

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From: Charlotte NC, behind someone going 10 under the speed limit

Derek, this thing actually only operates when the engine temp is below 95 degrees, and the colder it gets below that determines the on time for it, between 1 and 8 seconds. It's powered by the theft fuse behind the center stack info center.