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is tpi ecm 1227165 batch fire or sequential fire?

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Old 07-19-2003, 07:31 PM
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is tpi ecm 1227165 batch fire or sequential fire?

im curious as to which is the right answer because im hearing different opinions on how the injectors fire each crank rotation
Old 07-19-2003, 08:30 PM
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Car: 89 Iroc
Engine: 383
Transmission: 700R4
Axle/Gears: 3.45
Not sure what that ecm# references to but TPI motors are batch fire
Old 07-19-2003, 11:00 PM
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Car: 1989 Iroc
Engine: 5.7
Transmission: TH700R4
Yep, batch. The diver side four fire together, and the passenger side four fire together, or at least thats how i understand it from all the books and discussions.

Joker
Old 07-20-2003, 12:06 AM
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
all 3rdgens are batch.

the computer has no way of knowing what cyl is firing. it only knows how fast the engine is turning.
Old 07-20-2003, 01:32 AM
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great thanks for info i was starting to get confussed i always thought third gens were batch thanks again
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