93 Lx 2.3 5 Speed Foxbody

[Icebreaker]

Ok so the problem is after u run it awhile and then shut it off the car won't start right back up but runs and drives just fine but as soon as I shut it off it won't immediately fire right back up I have changed fuel pump filter coil packs plugs wires but still does it what do u think is causing my problems I'm also getting orange spark instead of blue so any ideas

 

[91TwighlightGT]

Pull codes.

 

[Icebreaker]

I have to Jerry rig it to pull the code from it write down go many times the check engine light flashes and what not then look it up online

 

[Shawneebear93]

It would probably be worth spending the money on a code scanner before buying more parts that may not fix the problem. My $30 code scanner came with a book listing the meaning of each code.

 

[Icebreaker]

Where can I get one at ?

 

[fess40]

Most parts stores have them in stock.

 

[Shawneebear93]

Yea I got mine at Advance Auto Parts.

 

[cadams155]

Next time it happens, leave the door open, turn the ignition to on/run, and listen for the hum of the fuel pump. If the pump doesn't run, replace the relay, I think its under the driver seat

 

[91TwighlightGT]

Fuel pump relay is part of the IRCM on the 91-93 model 2.3l Mustang. Without DTC's we are pissing in the wind as far as a diagnosis.

 

[cadams155]

Very true.

 

[Shawneebear93]

FWIW the IRCM is about $90 from Rock Auto and real easy to replace.