Ωhm

I have no voltage value for you. Any reading above 0vac would indicate action on that circuit. Take reading at D2-9, no need to disconnect anything.

ECU pin 6 controls the grounding for the FP relay (pin 2(85)). If FP runs and injector is hot, good CPS. ECU pin 27 supplies square wave for ICM. Try reading voltage on a VAC scale while cranking the car. Hold gas pedal to floor, should shut injector off.

How does one change Member title? Mine currently shows "Can Spell Comanche". I can't find it under "My Settings" and under "My Profile/Community Stats" "Edit my Profile" takes me to "My Settings".

Low life lives amongst all the generations. Sorry on the lost of the truck. Be happy that you didn't shoot him. You'd have more than just truck problems.

Who moderates the Moderators? Hope I don't get kick out now. Maybe I should be saying farewell fellows.

We got a football game on Saturday, sure you don't want to wait. :laughin:

I believe the manual ECU has a more aggressive spark advance curve, then the auto. Since you can wind up a manual trans.

Kneemail sent to the man upstairs.

I don't know, but could, would or should a short to ground (STG) on the ICM Tach output signal or a faulty Tach, cause this type of problem? 2¢ worth.

Eagle ------- Self-appointed President for Life of the International MJ Preservation Society What's a couple of hundred miles? :)

89base great post on O2 sensors. Good read. Thanks cruiser54 for posting that heater ground location. Sorry about the blunt (vague) post on O2 sensors voltage. Needed to add the word Zirconium. Hope I didn't mislead anyone.

Not sure what you mean by ...ground point from the ECU as a heater ground. Anyways, O2 sensors generate voltage. I don't believe voltage is supplied by the ECU O2 sensor input signal.

Truthfully, job requires a Harness Surgeon, along with a Dash/Cluster Master. But go for it, just make sure you disconnect the battery first.

No, IP_S refers to IP harness_Splice, while IP_S_E refers to IP harness_Splice_E with a circle around it.

The letters shown in the harness with the circles around them, is the location of the splice. Splices are buried within the wiring looms. Repairs require opening the wire loom.

INSTRUMENT PANEL HARNESS HEATER/AIR CONDITIONING HARNESS 2.5L/4.0L Should be page 91.

...tan wire... BRN (brown) wire from Ign Sw (A). If your Wiper/Washers work, your good from the Ign Sw (A) to the IP_S_E. A splice is used when wires of the same circuit come together (No connector). They're tied together, soldered and taped. Look at IP Harness Location in that download you got. Page 91 show location of IP_S_E.

Now I get all mixed up, unless things are real simple. Does the radio work with the radio fuse in and doesn't work with the radio fuse out or it just doesn't work at all, with or without the fuse? If the radio just don't work at all, you need to grab that test light and make sure the following fuses are Hot (12vdc): 1. Blower fuse 2. Turn B/U fuse 3. Radio fuse These fuses are tied back to IP_Splice_E. (mj1988electicmanual pg 8) I can't post photos, yet. Maybe someone can help here. IP_S_E is a five (5) wire splice containing the following: 1. Blower fuse, Turn B/U fuse & Radio fuse. 2. Horn Relay 3. Wiper/Washer circuit 4. Not Used 5. Ign Sw (A) All three (3) of your symptoms deal with this splice. I can only hope your fuses are Hot.

test

If you remove the radio's 15A fuse from the fuse panel, does the radio still work? Also does the cigar lighter work with or without the fuse?

Is vehicle equipped with a factory radio, and does it work?

Do you own a 12vdc Test Light?

Resistor under the hood, could be FP. (fuel pump)

Your second photo of the TB, doesn't that show the upper right missing the nipple. Can't tell if a plug is in there or not.

Doesn't Renix have "clear flood"? That is, when holding the throttle to the floor (WOT), the injectors shut off during crank, in order to clear any flooding that might have accrued in the manifold.