Powerstrokin93yota

i welded on a custom winch mount. i started the truck several times to move it during the project. but when i finally finished it wouldnt start.

first question. YES i disconnected the battery every time.

Here are the current symptoms. the fuel pump does not cut on unless hard wired directly to the battery, in which case it still doesnt run. it does run however if gas is injected directly into the intake.

i have tested most components. i question the circuit opening relay so i did the jumper test from FP to B+. still didnt work.

i hope someone can help lead me the right direction here before i go replacing everything or spend the money on a shop.

thanks

Powerstrokin93yota

wow sorry guys. havent posted on a forum in a long time.

its a 93 pickup with the 22re

4Crawler

iTrader: (3)

Figure out why the FP test jumper is not working:
- http://www.4crawler.com/4x4/CheapTri...shtml#FuelPump

Power to the CO relay or not?

Powerstrokin93yota

as far as the haynes manual is concerned yes i have power to the CO.

if the jumper doesnt work... does that mean a wiring issue. or could the CO still be at fault?

4Crawler

iTrader: (3)

Well, if the CO relay is turning on and off with the ignition then it is OK, or test it:
- http://www.4crawler.com/4x4/CheapTri...ORelayLocation

Otherwise it is likely wiring:

Powerstrokin93yota

if it is just wiring would the engine not start with the fuel pump hard wired directly to the battery?