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Unread 06-03-2013, 07:04 PM   #31
ZeeJay1997
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1997 ZJ 
 
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Clean all grounds before you spend a penny.

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Unread 06-07-2013, 07:52 PM   #32
Yttrium
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1997 ZJ 
 
Join Date: Mar 2013
Location: Boyne City, MI
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Okay I replaced the cord that was poop on my fender ground n I checked the other one n it's all good n still no start, n the engine light doesn't come on when I turn the key. So is my computer just ****ed? I checked all my sensors everything good. So when I turn the key over to where the power is on all the lights come on besides the check engine light n none of my Gage's move. So if anyone can help me from there please. because I'm about to go buy a new computer, but I don't want too if its not it.
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Unread 06-07-2013, 07:59 PM   #33
ZeeJay1997
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20 amp fuse in pdc? did you disconnect crank and 02 sensors?
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Unread 06-08-2013, 02:02 AM   #34
Oldfrog
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1997 ZJ 
 
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Look at the ground near the coil. I think that's where the PCM is grounded. Clean it up. Same goes for the one near the dipstick on the side of the engine block. You very well may need a PCM, but I'd make certain I cleaned all those connections up first. Double check the integrity of those battery cables too.....especially the factory clamps. They suck.
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Words of wisdom, Posted by Zeejay:
"..it's not air, it is the opposite of air... suckage so to speak."
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Unread 06-08-2013, 10:45 AM   #35
Yttrium
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1997 ZJ 
 
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Location: Boyne City, MI
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Zeejay yes all fuses are perfect, I did disconnect the crank n o2 sensors back n forth n still nothing, oldfrog I replaced the ground n bolts into the fender next to the battery n I cleaned up the ground thr runs under the coil, but I didn't know there was one by the dip stick. When I get home ill go back under there n clean that one up also, yes the clamps do sick, but I went out n bought new ones a while back. Because the old ones were horrible lol.
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Unread 07-12-2013, 09:19 PM   #36
Yttrium
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Okay so after all this time, finally had the money to replace my pcm, still not starting but the dash gauges are working again, cel comes on when turning key over also with the codes n saying I have gas now so that problem is fixed but now I have to figure out why it's not starting. So it was never the fuel pump, there's gas in the rail so that parts good so I guess there's no spark. So what could it be? Everything is basically brand new, spark plugs, wires, cap, rotor, pick up coil(cam sensor), ignition coil. I did buy a crankshaft position sensor last year from autozone because the old one was going bad. Could that be the main problem after all? Please someone get back to me, is there anyway I could test the crank seņor? So I don't have to waste any more money. Thank you
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Unread 07-13-2013, 01:59 AM   #37
Oldfrog
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1997 ZJ 
 
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I hate that you bought another pcm before finding any other issues. Hopefully NOT....but whatever issue you had to begin with might have fried yet another PCM.

As far as having an autozone crank sensor, I will tell you that it's the general consensus around here that you use ONLY Mopar crank sensors. But there may be hope yet.

Watch these:
https://www.youtube.com/watch?v=yp_kK6U8a64
https://www.youtube.com/watch?v=a-d6-jrGidA
https://www.youtube.com/watch?v=jLwNcgtv9z0
https://www.youtube.com/watch?v=dCZdv-FYwxw
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Words of wisdom, Posted by Zeejay:
"..it's not air, it is the opposite of air... suckage so to speak."
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Unread 07-19-2013, 12:57 PM   #38
Yttrium
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Great, well it seems to be working still so it's not dead yet lol but I'm going to replace the crank sensor with a dealer one next week so I hope it will start I've been broken down for so long, I have a kid on the way, I need to fix this jeep so I can find a better job n start a better life. I've put alot of money into this jeep I would die if I had to end up junking it. What other common issues could this be? Everything is basically new, which kills me why it won't start. Everyone I talk to about it in person just seems completely retarded. I've researched so much online, tried so many things. Replaced this n that, I miss my jeep.
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Unread 07-19-2013, 01:04 PM   #39
ZeeJay1997
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do the key trick and see if you get any stored codes. it can have a code with no light.

flash ignition switch to on-off three times withing 5 seconds stopping at ON
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Unread 07-19-2013, 01:45 PM   #40
zjosh93
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For what it's worth, I know a lot of people on here will only use Mopar sensors and the general consensus is that the ZJ will have problems with anything but Mopar.

None of my sensors are Mopar. Just a hodgepodge of Autozone and RockAuto. Runs fine. The O2 sensor is a NTK but I had a Denso before that and a Bosch before that. I couldn't tell the difference. You pay your money and you take your chances.

Of course my VIC also works fine, maybe I just have a lucky ZJ.
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Unread 07-20-2013, 10:00 AM   #41
Yttrium
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The only codes that come up is 12 n 55, n there nothing bad from what I heard n read about. Yeah I wish my zj was lucky lol
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Unread 07-20-2013, 06:51 PM   #42
Yttrium
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Well I was using a light tester n noticed that the coil plug gets power when turning over but the end that shoots the juice out doesnt get nothing. So I'm guessing the ignition coil is bad? So this could be why I'm getting no spark.
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Unread 07-21-2013, 12:11 PM   #43
fljeepney
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I had the exact same issue on my 93 2 weeks ago.It kept blowing the 30amp fuses,so I changed out the PCM and another 30 amp fuse and presto!Problem solved.Glad I didn't have to replace the fuel pump again.
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Unread 07-23-2013, 10:01 AM   #44
Yttrium
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Yeah nvm the coil is perfect **** this sucks
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Unread 07-25-2013, 10:59 PM   #45
Yttrium
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Im gonna start from the very beginning, as I was driving the jeep everything went out and it died. After about 1 hour it started back up, I was driving for another 20 mins, died again, after about 3 mins it started again. once I got back to my girls n parked it. Woke up the next morning, went to go start it. Nothing just dead. was reading no gas when I had a full tank! well finally got it pulled to my house while it sits there! I ended up replacing the fuel pump, wasn't the problem. there was no power to the pump, so I hot wired it. Still wasn't starting. Saw that the CEL wasnting coming on when I would turn it on and all the gauges weren't working. So I cleaned all the grounds, fuses n relays, pulled almost every wire out checked everything n still no start. Said **** it n replaced the PCM, still not starting. But the dash is working again n its saying I have gas. I checked to make sure there was pressure in the rail, there is. my whole tune up is from kolak got it in march. Along with a new cam sensor, well I was using a light test on wires seeing if I wasn't getting power to all my things n noticed that theres power going to everything, so that's good. I checked my coil n seen there was no power coming out of it so I pulled that out n took it to get it tested to make sure. Well it was fine, so something is causing it to not shoot the juice out n I do not know what, my crank sensor is over a year old from autozone. I don't think that would go bad this soon but then again idk. My PCM was dead I guess because everything that didn't work on the dash does work now. my o2 sensors are brand new from this year also, check the wires for them. ive been looking around about the alarm could be causing it from not starting. When I lock my jeep with the keyless remote the red light for the alarm doesn't come on no more. Have no clue why it always has work, so I rolled my window down n locked it n opened up from the inside to see if the alarm would go off like it used too n nothing, so my alarm is off? or got blown up or something. So that could be causing this whole starting problem? idk I need help ive done a lot n spent a lot of money trying to fix what I can n it sucks.
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