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Old 12-31-2017, 12:55 PM   #1
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wont start after fuel pump wire upgrade

So we are in the process of doing an eaton swap on the mach. Fired it up for a second the other day and realized we had a leak at the oil cooler (wrong gasket). Got it changed out and had time to do the wire upgrade at the same time. Went to fire it up, cranks but won't start, seems we have low pressure at the rails. It's 8 degrees outside and no heat in the shop so thought I'd see if anyone wants to do a little keyboard mechanicing.

Here is how we wired up the relay for the upgrade. 30 to battery via 8ga wire. Pink/Black wire from FPDM to pin 87, Pink/Black wire from CCRM to pin 86 and ground to pin 85. We will be replacing the stock tank with a cobra tank and pumps but haven't yet. I added the additional 8ga wire to the Pink/Brown wire at the FPDM but haven't connected it to the harness at the HAT.

When turning the key over, the fuel pump cycles and the relay kicks on. We also have 12 volts on the 8ga wire that is coming off the Pink/Brown wire. However, when testing fuel at the rail but releasing pressure at the schrader valve the fuel comes out like a weak water fountain from your high school.

It's almost as if the PATS system is active but the theft light only blinks when the car is off, as soon as you turn the car to accessory, it comes on solid and then turns off.
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Steeda tri axe shifter
MRT H pipe w/Magnaflow cat back exhaust
JLT air intake
PHP intake spacer
Aluminum Driveshaft
SLP line-lock
4.10 gears
Moser axles
welded axle tubes
ET Radials
Dyno 300whp 318wtq n/a

415whp 515wtq NX 125 shot
Someone needs to slap the stupid outa you
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Old 01-02-2018, 09:30 AM   #2
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Re: wont start after fuel pump wire upgrade

Well this problem has been solved, ended up being a wire disconnected that controlled my flip chip tune. Now we are dealing with a starting and idling issue.
__________________
Steeda tri axe shifter
MRT H pipe w/Magnaflow cat back exhaust
JLT air intake
PHP intake spacer
Aluminum Driveshaft
SLP line-lock
4.10 gears
Moser axles
welded axle tubes
ET Radials
Dyno 300whp 318wtq n/a

415whp 515wtq NX 125 shot
Someone needs to slap the stupid outa you
shake this is offline   Reply With Quote
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