Topic: Nedd help to fix my Jeep via remote control...

[jeeper78]

that was freakin' funny

on another note, i would think that the water is gone by now, did your dad got it started?

x2 

[jfrabat]

that was freakin' funny

on another note, i would think that the water is gone by now, did your dad got it started?

Actually, he just dropped in as a urprise visit for my B-Day next week...

[dwtaylorpdx]

Sorry I was commenting on indiscriminate use of brake cleaner,
Its really designed to clean the surfaces of brake drums and rotors, its not a universal cleaner.

I've seen some nasty damage done to electrical systems by it.
It reacts with some insulators and rubber bits. It will destroy some MAF sensors.

The distributor has a sealed bearing in the top just below the trigger assembly/cam sensor,
if you spray brake clean down into the distributor it can wash the oil out of the upper bearing.

Make more sense? 

Dave

[jfrabat]

OK, guys, I am OFFICIALLY stumped; I got to Panama today, and I figured the Jeep would start up (since I was suspecting water in the distributor), but it did not.  I checked again fuel pressure, and it was fine.  Checked for spark, but no spark, so I though it was the coil.  Had one in the Jeep, so installed it.  Nothing.  Figured it could be the ECU, and since I had one of those as well in the Jeep, tried it.  Nothing.  Took out the code scanner, and I got a code 54; the code scanner says something about the code 54 being something about the injectors, but reading the FAQ, it seems it is the CPS.  What do you guys think?  Now, the CPS I replaced before leaving Miami (maybe 6 months ago?), but what do you think?  Bad CPS?

[aw12345]

Didn't somebody just go through a bunch of hell because of a poor connection/ corrosion on one of the fuses for something obscure that also fed a signal to the ecm?

[sharpxmen]

Didn't somebody just go through a bunch of hell because of a poor connection/ corrosion on one of the fuses for something obscure that also fed a signal to the ecm?

it was a broken wire on the ASD control wire i believe

[jfrabat]

OK, guys, I am OFFICIALLY stumped; I got to Panama today, and I figured the Jeep would start up (since I was suspecting water in the distributor), but it did not.  I checked again fuel pressure, and it was fine.  Checked for spark, but no spark, so I though it was the coil.  Had one in the Jeep, so installed it.  Nothing.  Figured it could be the ECU, and since I had one of those as well in the Jeep, tried it.  Nothing.  Took out the code scanner, and I got a code 54; the code scanner says something about the code 54 being something about the injectors, but reading the FAQ, it seems it is the CPS.  What do you guys think?  Now, the CPS I replaced before leaving Miami (maybe 6 months ago?), but what do you think?  Bad CPS?

By the way, the first time I read the codes, I also got a code 11.  After I erased that one, it did not come back (only the 54 kept coming back).  According to the FAQ:

Code     Description
11   
•No crank reference signal detected during engine cranking.
•Intermittent loss of either camshaft or crankshaft position sensor.
•CKP sensor target windows have too much variation.

Code     Description
54    No camshaft signal detected during engine cranking.

So it defenetly sounds like a CPS to me, so I asked my dad to buy one while I'm at work today.  What do you guys think?  CPS as well?  As far as I know, there is no camshaft sensors on a YJ, right?

[dwtaylorpdx]

They refer to the sensor inside the distributor as the cam position sensor.
Often related to water infiltration or oil from a bad shaft seal.

The CPS should throw a hard code "Should" being the key word.... :)

Dave

[sharpxmen]

By the way, the first time I read the codes, I also got a code 11.  After I erased that one, it did not come back (only the 54 kept coming back).  According to the FAQ:

So it defenetly sounds like a CPS to me, so I asked my dad to buy one while I'm at work today.  What do you guys think?  CPS as well?  As far as I know, there is no camshaft sensors on a YJ, right?

i would focus on the cam sensor to start - i posted in another thread the method of checking the cam sensor (copy paste from FSM so you can find it there as well) using a needle type voltmeter - let me know if you can't find it and will post it again. Since this started with the engine being washed i would check that the Cam pos sensor has good contact as well - the cam and crank sensors are sealed so it's unlikely that the water make them die (but you never know), check the signals first.

like dwtaylor said, the cam sensor is the sensor inside the distributor.

[aw12345]

The story I was talking about had to do with the fuse and circuit for the courtesy lights. Still start with the basics see if you get a signal out of the cam sensor and crank sensor. It's one of the reasons I don't care for steam cleaning or pressure washing engines, all the weather pac seals on connectors do not stand up to that much water pressure

[sharpxmen]

The story I was talking about had to do with the fuse and circuit for the courtesy lights.

you probably mean the dome light related post, that was a bit confusing as there is no dome light fuse (or courtesy lights) on the under-dash fuseblock and that's the one he referred to - there is an ASD fuse there so that could have been the prob (makes more sense) but we didn't get a definite answer as in which fuse it was (i posted a diagram of the fuseblock asking which one it was but no answer yet). link to that thread http://4bangerjp.com/forums/index.php/topic,7718.msg59267.html#msg59267

[sharpxmen]

i would focus on the cam sensor to start - i posted in another thread the method of checking the cam sensor (copy paste from FSM so you can find it there as well) using a needle type voltmeter - let me know if you can't find it and will post it again. Since this started with the engine being washed i would check that the Cam pos sensor has good contact as well - the cam and crank sensors are sealed so it's unlikely that the water make them die (but you never know), check the signals first.

like dwtaylor said, the cam sensor is the sensor inside the distributor.

also check and make sure you get 12v from ASD at the coil and/or injectors, same for fuel pump relay. here's the post where i pasted the camshaft position sensor test procedure (from the FSM page 6 in file 95XJ_8D.pdf) - keep in mind that you need a needle type multimeter, the digital one will not work.
http://4bangerjp.com/forums/index.php/topic,7246.msg53622.html#msg53622

here's the crank position sensor test from the same manual, not as extensive as the cam one and i would guess that is not as accurate either unless you use the scan tool. I would think that the same test procedure from the cam sensor could also work for the crank sensor (although i did not try it) to see if you get signals from it

CRANKSHAFT POSITION SENSOR TEST
To perform a complete test of this sensor and its
circuitry, refer to the DRB scan tool. Also refer to the
appropriate Powertrain Diagnostics Procedures manual.
To test the sensor only, refer to the following:
The sensor is located on the transmission bellhousing
at the left/rear side of the engine block (Figs. 2, 3
or 4).
(1) Near the rear of the intake manifold, disconnect
sensor pigtail harness connector from main wiring
harness.
(2) Place an ohmmeter across terminals B and C
(Fig. 5). Ohmmeter should be set to 1K-to-10K scale
for this test. The meter reading should be open (no
resistance). Replace sensor if a low resistance is indicated.
For removal or installation of ignition system components,
refer to the Component Removal/Installation
section of this group.

[jfrabat]

Well, I already bought the CPS, but I will check the camshaft sensor tonight based on the FSM (I have that on my PC, but was too lazy to read it!)

[sharpxmen]

Well, I already bought the CPS, but I will check the camshaft sensor tonight based on the FSM (I have that on my PC, but was too lazy to read it!)

check the ASD voltage output as well, make sure you've got 12v while cranking or you won't get spark or gas otherwise (also listen for the fuel pump or check the voltage at the FP relay)

[jfrabat]

check the ASD voltage output as well, make sure you've got 12v while cranking or you won't get spark or gas otherwise (also listen for the fuel pump or check the voltage at the FP relay)

I already switched the ASD relay, and the fuel pump is priming (I have fuel pressure at the rail).  It certainly sounds like you guys are correct, and the cam sensor is either ruined or there is still water in there (I'll open up the distributor tonight and we will find out then).  I already printed the procedures for testing and replacing it just in case...