testing fuel injectors
#2
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From: Schererville , IN
Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
Well.
U have 2 ways, depending on what is easiest, 3 technically.
First ohm the injectors, theyshould all be within a ohm or so of each other.
If the miss is solid and not intermittent:
Then u can pull injector leads one at a time
Or u can pull plug leads one at a time.
Obvioulsy if u have a dead cylinder, when u pull that one you should get no change and it should get worse if you remove the fuel/spark from an otherwise good cylinder
edit: If u find something suspect or have quick pressure drop even with the return line blocked, pull the fuel rail up and pressurize the system, any leaks/drips shoudl be evident then
later
Jeremy
U have 2 ways, depending on what is easiest, 3 technically.
First ohm the injectors, theyshould all be within a ohm or so of each other.
If the miss is solid and not intermittent:
Then u can pull injector leads one at a time
Or u can pull plug leads one at a time.
Obvioulsy if u have a dead cylinder, when u pull that one you should get no change and it should get worse if you remove the fuel/spark from an otherwise good cylinder
edit: If u find something suspect or have quick pressure drop even with the return line blocked, pull the fuel rail up and pressurize the system, any leaks/drips shoudl be evident then
later
Jeremy
Last edited by 3.8TransAM; 09-05-2005 at 05:22 PM.
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