Intermittent starting - 1989 Toyota Pickup SR5

Question edited for clarity.
Question moved to model category.

Sensor issues or wiring to them.

Code P1391 Dodge CMP or CKP Signal Intermittent ...

AutoCodes https://www.autocodes.com > p1391_dodge
Engine Light ON (or Service Engine Soon Warning Light) · Lack/Loss of Power · The engine may be harder to start · The engine may stumble or stall.

Cam Sensor Failure Causing no Start or Stalling : Dodge ...

RepairPal.com https://repairpal.com > Problems > Dodge > Dakota
On 3.7L V6 and 4.7L V8 engines the camshaft position sensor may fail causing the engine to crank but not start or it can cause intermittent stalling.

Dodge Dakota Vehicles With This Problem

RepairPal.com https://repairpal.com > Problems > Dodge > Dakota
On the 3.9L V6 and 5.2L V8, an intermittent connection in the crank position sensor wire connector can cause poor engine performance or the engine may crank but ...

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What car runs intermittent? And do you mean that it only starts intermittently or that it only drive intermittent distances. Gotta put a bit more effort into this if you want to get anything back

Sounds like an intermittent crank or cam sensor.

Yes. When was the last time you had the starter changed? Has anyone crawled under the vehicle to check for a loose starter? If the starter does not engage it may be the starter solenoid ( the thing that drives the gears into contact before the starter actually turns ). This might not be ramming the gears together properly and that will cause the grinding noise, as well as an intermittent start.

check fuel pressure regulator..how many miles are on this car?

I would suspect that you have a loose connection inside the distributor or in the ignition wiring. Give it a good visual inspection. Also, after dark, have someone start the car while you observe under the hood for any arcing or sparking. Doing this at night allows you to see where trouble may be located. Let me know what you find. [email protected]

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Check the negative ground coming off the battery to the block. A bad engine ground will cause an intermittent starting problem.

Its the starter solenoid. Remove 2 bolts and the lead wire and pull the starter out. most local parts stores can test the starter for you, but if the problem is intermittent it might not show up during their test.

On my jeep, after pulling the starter, I disassembled the solenoid. The actual failure of the solenoid was the electrical contact. I cleaned off the corrosion and have had no problems for 40,000 miles.

Replace the TFI module. Google Ford TFI modules and you see the problem they have with these.