1997 dakota truck nor running good, missing on varuious cylinders and pulling codes p0320,p1391,p0351 replace crankshaft position sensor and problem worsened. reading 5.1 volts at crankshaft sensor connector. how many volts should it read and what fuse does this connector run from. please help im out of options and broke.
Code 320 is a problem with the tach signal which could be the crank or cam sensor.
Code 351 is a problem with the positive or negative circuit to the coil.
And code 1391 is for a problem with the ABS system which would not involve the engine running.
The sensors get a 5 volt reference from the computer and the return signal is what the computer "watches".
I would make sure you have battery voltage on the positive side of the coil and see if you have a ground reference from the computer.
You may need a shop manual to get the procedure to troubleshoot the ignition system.
SOURCE: dodge caravan 1997 3.3l Xavierfrancofuenmayor
Had similar problems occur on various Chrysler products manufactured since 1986. What I did was remove the computer from the car and then take a Dremel tool with wire brush attachment and lightly buff all the pins of the computer--tops, sides and backs. After this I then take a jewelers round file and insert the tip into each connector pin hole and very lightly file it to remove any corrision. When I reassembling the connector plug to the computer I placed a good size dab of silicon grease on the plug in the center (acts as a seal when seated). This has eliminated the problem on four different vehicles.
SOURCE: 2001 Jeep Grand Cherokee code P1391
I would check to be sure that the timing chain hasn't jumped at all ..
SOURCE: 2002 Dodge Durango 4.7L V8 Check Engine Codes
1st try and search for a vaccum leak, due to the fact that these vehicles have had some bad problems with the length of wires and hoses, if there is a vaccum leak in the vehicle somewhere that will trigger other malfunctions in your vehicle. Using a can of starting fluid or Brake cleaner spray lightly spray around our engine til you hear the motor rev-up and the spot you have sprayed will determine where your vaccum leak will be. And then check under your distributor cap for any moisture be sure to take a rag and wipe and residue off. Also check the firing order on your distributor.
SOURCE: 1996 Dodge Dakota 8 cylinder code P0171
there is only one oxygen sensor.. it is located in the exhaust pipe comming out of the engine jusy at the starting of exhaust... u can easily find it and replace it..
SOURCE: 1998 chevrolet truck 5.7 liter code p1345 whats it
i change darn near every sensor and 3 fuel pump on my "1998 chevy tahoe sense last 5yrs.i own it,and the last fuel pump on it two days ago and it just turns over hard,but won't crank.
312 views
Usually answered in minutes!
×