Electrical 91 GT foxbody fuel pump keeps priming
- Thread starter Frank cortez
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HemiRick
I'd be looking at jacking under the house
Ive double checked many times and still nothing i removed the old capacitor wires and yes one line did get shorted because i tried to make a connection with a wire and that caused the fuel pump to turn off when i tried to crank it but i fixed that and still keeps priming
Also how do i check which tool do i need and i just checked to see if im getting fuel to rails and yes
You’ll need a multimeter. You can use resistance (ohms) to check if the multimeter doesn’t have a continuity function.
if it’s open, you have a burned pin 46 trace
the ECU pin connector is labeled. Look on the side of the plastic connector and you’ll see 1, 10, etc indicating which pin is what
if it’s open, you have a burned pin 46 trace
the ECU pin connector is labeled. Look on the side of the plastic connector and you’ll see 1, 10, etc indicating which pin is what
Ill have to go buy a multimeterYou’ll need a multimeter. You can use resistance (ohms) to check if the multimeter doesn’t have a continuity function.
if it’s open, you have a burned pin 46 trace
the ECU pin connector is labeled. Look on the side of the plastic connector and you’ll see 1, 10, etc indicating which pin is what
this simple one will do your basic electrical and continuity testing that you’d use on a vehicle.
Etekcity Digital Multimeter, Voltage Tester Volt Ohm Amp Meter with Continuity, Diode and Resistance Test, Dual Fused for Anti-Burn, Red, MSR-R500 Amazon product ASIN B01N9QW620View: https://www.amazon.com/dp/B01N9QW620/ref=cm_sw_r_cp_api_glt_fabc_M231MWZZHVGQVEQQG5D6?psc=1
Okay so i bought one and where does the black cable go and where does the red one go in the ecu pins?
When testing for continuity, it does not matter what color probe goes where. You are simply completing a loop.
set the meter to the position that makes an audible tone. If you touch the lead ends the meter will make a sound. Now touch one probe to 40 and the other to 46. You should hear it ring.
if the meter doesn’t have sound, set it to resistance (ohms) and touch the two probes. If there is a connection the display will show numbers that eventually go to 0 indicating a solid connection.
set the meter to the position that makes an audible tone. If you touch the lead ends the meter will make a sound. Now touch one probe to 40 and the other to 46. You should hear it ring.
if the meter doesn’t have sound, set it to resistance (ohms) and touch the two probes. If there is a connection the display will show numbers that eventually go to 0 indicating a solid connection.
Okay so if it has a solid connection then what because your saying that if pin 46 stays open the. Its bad
I failed at trying to fix the capacitors on my ECU. I ended up going with this service. Quick turn around and the replacement has been working perfect.
A9L A9P C3W A3M X3Z MUSTANG ECU PCM COMPUTER REPAIR SERVICE 5.0 REPAIR & RETURN | eBay
Mustang ECU Repair Service. Quick turn around after the computer is received. Easy repair process. If we are unable to repair your computer, WE CAN HELP! 701 La Veta Dr. Crank, no start?.
www.ebay.com
Ive never really sent stuff through mailI failed at trying to fix the capacitors on my ECU. I ended up going with this service. Quick turn around and the replacement has been working perfect.
A9L A9P C3W A3M X3Z MUSTANG ECU PCM COMPUTER REPAIR SERVICE 5.0 REPAIR & RETURN | eBay
Mustang ECU Repair Service. Quick turn around after the computer is received. Easy repair process. If we are unable to repair your computer, WE CAN HELP! 701 La Veta Dr. Crank, no start?.www.ebay.com
HemiRick
I'd be looking at jacking under the house
You dont have a multimeter? How can you check your work?....use it to make sure the new caps make continuity to the circuits.
Yes i bought one and yes i did put them okay but seems like pin 46 is the one that burnt but im checking and i soder the little connections from the back because i did see that the trace was brunt but seems like i didn't soder the piece of wire right
Okay so ive been testing the ecm pins is that what i was supposed to be checking or was it where the the pins go?
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