Okay, check the injectors ohms unplugged, make sure they're the not shorted out. Here's another test: Unhook the 4 pin harness from the back of the distributor.
Attach the clip of your test light to 12V positive.
Turn on the Ignition.
Tap the purple/white wire on the 4 pin dist harness (IC Reference High) with the test light probe; it should create a test signal and fire the injectors. I'm trying to find as many simple tests as possible for you.
Have you tried unplugging some sensors? TPS, MAP.
And does this truck have a security system?
Thursday, October 24th, 2019 AT 10:12 AM