Harness Hassles
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Member
Joined: Oct 2002
Posts: 156
Likes: 1
From: Winnipeg, Canada
Car: 88 IROC Convertible
Engine: 355 (Finally!)
Transmission: Auto :(
Harness Hassles
When re-attaching the fuel injector harnesses, how do you know which one goes on which injector? They are in 4 groups of 2 harnesses each. Does it matter within each group (does it batch fire 2 at the same time maybe?). We fired the new motor up for the first time last night (very exciting) but it was running like a bag of crap (very demoralizing). Any thoughts on this harness problem?
Supreme Member
Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
batch..... left bank and right bank fire separately.
athough it shouldnt run cruddy, even if you completly crossed them...
athough it shouldnt run cruddy, even if you completly crossed them...
Supreme Member
Joined: Jul 1999
Posts: 1,817
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From: Plano, TX
Car: 1992 RS
Engine: 406 Stealth Ram
Transmission: 700R4
All 8 fire at once...
Batch = All injectors at same time
Bank to Bank = 1 side, then the other
Sequential = Each injector fires individually.
Batch = All injectors at same time
Bank to Bank = 1 side, then the other
Sequential = Each injector fires individually.
Last edited by Scott_92RS; Feb 19, 2004 at 11:42 AM.
Supreme Member
Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by Scott_92RS
All 8 fire at once...
Batch = All injectors at same time
Bank to Bank = 1 side, then the other
Sequential = Each injector fires individually.
All 8 fire at once...
Batch = All injectors at same time
Bank to Bank = 1 side, then the other
Sequential = Each injector fires individually.
batch really means.... they fire in a batch... any group of more then one injector can be considered a batch.
bank to bank is a TYPE of batch injection.
so yes, TPI is bank to bank batch injection.
straight from dictionary.com
batch1 ( P ) Pronunciation Key (bch)
n.
An amount produced at one baking: a batch of cookies.
A quantity required for or produced as the result of one operation: made a batch of cookie dough; mixed a batch of cement.
A group of persons or things: a batch of tourists; a whole new batch of problems.
Computer Science. A set of data or jobs to be processed in a single program run.
tr.v. batched, batch·ing, batch·es
To assemble or process as a batch.
n.
An amount produced at one baking: a batch of cookies.
A quantity required for or produced as the result of one operation: made a batch of cookie dough; mixed a batch of cement.
A group of persons or things: a batch of tourists; a whole new batch of problems.
Computer Science. A set of data or jobs to be processed in a single program run.
tr.v. batched, batch·ing, batch·es
To assemble or process as a batch.
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Supreme Member
Joined: Jul 1999
Posts: 1,817
Likes: 1
From: Plano, TX
Car: 1992 RS
Engine: 406 Stealth Ram
Transmission: 700R4
Originally posted by MrDude_1
batch really means.... they fire in a batch... any group of more then one injector can be considered a batch.
bank to bank is a TYPE of batch injection.
so yes, TPI is bank to bank batch injection.
straight from dictionary.com
batch really means.... they fire in a batch... any group of more then one injector can be considered a batch.
bank to bank is a TYPE of batch injection.
so yes, TPI is bank to bank batch injection.
straight from dictionary.com
Member
Joined: Aug 2003
Posts: 466
Likes: 0
From: Bakersfield
Car: 1985 IROC-Z
Engine: 1989 350 4 bolt roller block
Transmission: ProBuilt 700R4 Road Race with Edge 9.5" 2800 stall lockup converter
They actually fire twice for each cycle. Half the mixture on one shot and the other half in another shot. That way it keeps the fuel/air mixture flowing. Not the best way to do it but it works. Sequential Port Injection works better.....
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Joined: Oct 2003
Posts: 302
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From: Houston / The Woodlands, TX
Car: 82 ElCamino, looking for a 3rd gen
Engine: 305 TPI(427SB in progress) 730 $8D
Transmission: THM350 (Getting a 4L80E soon)
Axle/Gears: 10 Bolt w/ 2.43 gears :(
The pink/black plugs go on the odd bank(drivers side) and the light green/ black go on the even bank(passenger side). If you did some heavy mods to the motor you might have to do some prom tuning to get it to run, or at least let it go into closed loop to adjust the fuel trim.
Thread Starter
Member
Joined: Oct 2002
Posts: 156
Likes: 1
From: Winnipeg, Canada
Car: 88 IROC Convertible
Engine: 355 (Finally!)
Transmission: Auto :(
I guess you'd call them heavy mods in the sense that this 350, while not that crazy (cam, slight porting) is replacing a 305 - but I switched to a 24# lti injector, so my thinking is this - fuel injectors are delivering more fuel than the computer thinks they are but the motor is bigger than the computer thinks it is - so they should balance out. I am getting a custom prom done very soon though from Westers Garage in Alberta.
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