p1237, no logs

[termicrazy]

About 2 weeks ago my 03 cobra started up for about 10 seconds smooth then sputtered and died. It wont start at all now, its a very low power rebuild at about 450hp, nothing impressive on the car. I originally came up with p0148, p1237, and p0193. I checked my fuses and power to frps, pump relay, and fpdm. I changed the pump relay just to be safe and thought i had narrowed it down to the fpdm doing the voltage test with key on/off. I swapped the fpdm out and it threw p1233 at me with the others so I cleared the codes and checked again and am now only seeing p1237. Is it safe to say that I've narrowed it down to the fuel pump? I have no logs to give you so Im not sure where to go from here.

*It also had had a power issue that feels like its being shut off between 4-5k rpms at WOT for about a year. I suspect its related.

 

[hotcobra03]

is the fpdm modified?

 

[termicrazy]

1. No, it's a basic one from autozone. Just needed it fixed and thought it would the trick.

 

[toddyfiveo]

I am going through this right now. I had the P0148 last year with the same symptoms you discribe. Turned out I had a bad fuel pump, replaced with Black306 pumps and modified FPDM. Today I got the other DTC's you are getting, plus my FRPS failed as my fuel pressure jumped to 78psi. I've replaced with a spare FRPS and pressure is still at 78. After I get it towed home I am going to drop the tank and check the pumps and wiring.

 

[termicrazy]

It turned out to be my fuel pumps as well. Dual340 stealth pumps. Had power to the pumps and no fuel still. Will have an update on performance in a a day or two.

 

[toddyfiveo]

I dropped my tank. I had a positive wire from pump grounding it’s self out on the fuel hat. Redid wiring and all is good now.


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