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Old 04-29-2007, 01:01 PM   #1
Hozer 88GTConv
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Default Major Fuel Injector Prob, intake full!

Gents,
Something is very bad in my motor. My fuel injectors have managed to fill up the intake with fuel.
I put the key in the ignition, haven't even tried to turn the car over for 6 weeks. No cranking at all and it filled up at least 3 cylinders.
I heard a "tick tick" from the injectors and thought that was weird. Well, this is bad.
What the hell happened?

History:
Car was running fine, then stopped one day idling in driveway. That's it. Will not hold fuel pressure (cause it's dumping into the cylinders)...

Update:
Constant 12v to each injector with the ignition on, no pulsing, just constant...
Attached Images
File Type: jpg intake.jpg (584.7 KB, 13 views)
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1988 GT Convertible
331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta...
One week with new motor, two speeding tickets...joy

Last edited by Hozer 88GTConv; 04-29-2007 at 01:42 PM..
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Old 04-29-2007, 08:59 PM   #2
Hozer 88GTConv
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Default Re: Major Fuel Injector Prob, intake full!

Swapped computers and voila!
I pulled the plugs and shot the fuel out. It started up, but I only ran it for a minute b/c I feared fuel contamination.
Sure enough, the oil had a quart of fuel in it easy.
I was worried I would spin a bearing, but it seems to be okay after a fresh oil change. No valve ticking at all.
I just have a bad intake backfire, I didn't rtv the intake gasket b/c I was in a rush.
So, that should be it...
I'll let you know.
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1988 GT Convertible
331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta...
One week with new motor, two speeding tickets...joy
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Old 05-02-2007, 11:34 AM   #3
Hozer 88GTConv
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Default Re: Major Fuel Injector Prob, intake full!

Three day update:
a.Properly sealed the upr/lwr intake
b.Hooked the Anderson PMS back up, what a great piece of eqpt.

The stang has been running fine for two days commuting, steady idle, good accel, 02's are reading normally although my wideband is on my h-pipe and it's showing a leaner condition than the 02's farther upstream.

I'm wondering if the lack of backpressure is adversely affecting the wideband reading. I had it installed by a great Mustang performance shop guy, so I want to doubt that theory.

Btw, I think the Amderson PMS is a great piece of gear, despite the price.
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1988 GT Convertible
331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta...
One week with new motor, two speeding tickets...joy
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Old 05-07-2007, 11:21 AM   #4
bmxmon
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Default Re: Major Fuel Injector Prob, intake full!

Wow, thats crazy.
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Old 05-07-2007, 12:13 PM   #5
Hozer 88GTConv
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Default Re: Major Fuel Injector Prob, intake full!

Yeah, I only have 10k on the new motor and was sweating that I jacked up the bearings.
I still will perform a compression test on each cylinder, but what is done is done.

It seems to be okay, just needs a little tuning on the low end and she'll be okay.

This is what happens when you don't fire the stang up for 7 weeks. They get angry, very very angry.
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1988 GT Convertible
331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta...
One week with new motor, two speeding tickets...joy
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Old 05-22-2007, 04:23 PM   #6
USMC302
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Default Re: Major Fuel Injector Prob, intake full!

You said you swapped computers, wonder if the old one was just feeding a constant pulse to those couple injectors, never seen anything like that, ever! I guess the injector could be leaking but that would only be under the fuel system being pressurized......hmmm, WILD pic!
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Old 05-22-2007, 05:38 PM   #7
Hozer 88GTConv
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Default Re: Major Fuel Injector Prob, intake full!

good thing I didn't have a cigar, which is typically what I do while working on the car...
several weeks now and she's running great....
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1988 GT Convertible
331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta...
One week with new motor, two speeding tickets...joy
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