Leaky injectors

Hotrodvdog · April 18th, 2006, 11:41 PM

If an injector was leaking would the computer compensate to pull fuel out of the bank where the leaking injector would be? Real time data shows the computer removing -25% of long fuel trim in each bank. Maybe I have clogged injectors? Any ideas?

Casper98GT · April 19th, 2006, 06:40 PM

technically yeah. It would pull. Can you stand outside youre car and smell it burning rich?

If youre long term fuel is getting yanked from the system by 25%, then youre not getting any air. Or like you said... a large amount of fuel so its adjusting for the long term fuel map and taking away alot of fuel.

What kinda car are you running ? If youre running a N/A 4.6 SOHC its easy enough to yank the fuel rail and do a test on them. See how they spray.

If youre injectors were clogged, in theory you wouldnt be getting enough fuel, so it would be adding more fuel in the long term because youre getting too much air for the mixture in short term.

Twist 2 Go · April 20th, 2006, 08:28 AM

It's definitly rich. when the long trim reads -25 what does the short trim read?. what is the fuel pressure? a leaking injector could cause this as could a bad maf, bad egos, or high fuel pressure.

April 18th, 2006, 11:41 PM	#1
Hotrodvdog Newbie Join Date: Dec 2005 Posts: 6 iTrader: 0 reviews	Leaky injectors If an injector was leaking would the computer compensate to pull fuel out of the bank where the leaking injector would be? Real time data shows the computer removing -25% of long fuel trim in each bank. Maybe I have clogged injectors? Any ideas?

April 19th, 2006, 06:40 PM	#2
Casper98GT Hardcore Enthusiast Join Date: Aug 2005 Location: NEW HAMPSHIRE Posts: 2,393 iTrader: 0 reviews	technically yeah. It would pull. Can you stand outside youre car and smell it burning rich? If youre long term fuel is getting yanked from the system by 25%, then youre not getting any air. Or like you said... a large amount of fuel so its adjusting for the long term fuel map and taking away alot of fuel. What kinda car are you running ? If youre running a N/A 4.6 SOHC its easy enough to yank the fuel rail and do a test on them. See how they spray. If youre injectors were clogged, in theory you wouldnt be getting enough fuel, so it would be adding more fuel in the long term because youre getting too much air for the mixture in short term. __________________ 91 LX, 5spd. Ex:Toyota/Ford tech Marine Machinery Technician, Department of Defense.

April 20th, 2006, 08:28 AM	#3
Twist 2 Go Hardcore Enthusiast Join Date: Aug 2005 Location: Chesapeake, Virginia Posts: 1,716 iTrader: 0 reviews	It's definitly rich. when the long trim reads -25 what does the short trim read?. what is the fuel pressure? a leaking injector could cause this as could a bad maf, bad egos, or high fuel pressure. __________________ 88 Mustang Coupe 2006 FFW Richmond True Street Runner-Up www.rickscarcare.net

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