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Hey Jerry,Hard to say for sure but if they're Bosch I'd definitely be more than suspicious and immediately replace them with NTK or NGK.
I don't have any specific recommendations other than to avoid distributor caps and rotors (finger) with aluminum contacts which don't last as long as those that have brass contacts. So try to find a 'premium' distributor cap and rotor with brass contacts.Hey Jerry,
i want to replace my spark plug wires, distributer cap and finger, do you have any recommendations. I live in Austria and its really hard to find good quality parts. Are there parts out there which are equally good as the oem ones?
My TJ is a Sport 4.0 from 1997
Best greetings from Austria
Thanks for your reply, where could I get some OEM wires?I don't have any specific recommendations other than to avoid distributor caps and rotors (finger) with aluminum contacts which don't last as long as those that have brass contacts. So try to find a 'premium' distributor cap and rotor with brass contacts.
And for the wiring, OEM type is what you want, avoid any so-called "performance" or "low-resistance" ignition wiring sets. Performance/low-resistance is actually a bad thing where ignition wiring is concerned, it causes static in AM or CB radios which can also interfere with the engine computer.
It's unlikely you'll find actual Mopar OEM ignition wiring, you'll have to just do a search for the best quality OEM replacement wiring from a good aftermarket brand that you can find. Like NGK, Denso, AC-Delco, or the "Standard Premium" from Standard Motor Products. Avoid any ignition wiring sets that claim low resistance or better performance or are store brands.Thanks for your reply, where could I get some OEM wires?
X2, don't use the special 7/8" O2 socket with the slot milled into it for removing the old O2 sensors. It's not strong enough for that since they are normally seized into place by the time they need to be replaced, it's meant for installing new O2 sensors. Cut the wiring off from the old sensors first then use a normal 7/8 socket/box-end/open-end wrench as needed. You may need some extra leverage from a breaker-bar etc. to break them free, they can be TIGHT.
Ok so I eventually managed to source sensors and fitted them, and frustratingly they made no difference, it’s still stalling, I’m guessing next would be fuel pump , then pcm ? Im going to order a kit to test the fuel pressure to see what that says.Aside from the one new O2 sensor the others are the originals. How many miles on your jeep?
I can understand your frustration with trying to source parts over there. My cousin used to own a shop in Armadale up on Skye. He would tell me about the delay in trying to get parts.Ok so I eventually managed to source sensors and fitted them, and frustratingly they made no difference, it’s still stalling, I’m guessing next would be fuel pump , then pcm ? Im going to order a kit to test the fuel pressure to see what that says.
Should be at or very close to 49 psi, rev the engine and see that it can keep the pressure up.
So I’ve not got round to checking fuel pressure yet but I’ve been doing some research. After changing out the O2 sensors I had taken it on a drive about an hour away from home just to see what creeped up. Something that happened was the speed locked up and wouldn’t go any higher , can’t remember off the top of my head but I think it’s as about 30-40mph , (I don’t really look at the speed I’m going cause the dash is in Km and I’m too lazy to convert it on the fly haha) but from my understanding that means it’s entering limp mode for whatever reason ? When restarted it went back to normal, this happened a good few times. I’m guessing something like that would mean a transmission or pcm fault ? I doubt a fuel pump would cause it to do that, but then I’m not the expert haha. I had considered tcc solenoid a long time ago so maybe it’s time for that to come back up the priority list. I’m going to get myself an OBD II reader that shows live data in the hope that this shows something up , grasping at straws now , the breadth and variety of problems make be think it could be something pcm related but who knows at this stageI can understand your frustration with trying to source parts over there. My cousin used to own a shop in Armadale up on Skye. He would tell me about the delay in trying to get parts.
Before you go throwing any other parts at it. There are a few free things you can try.
I would check to make sure your battery cables are clean and tight on both ends.
Inspect the wiring harness around the back of the rocker cover, The harness can rub thru causing rough idle/stalling.
With the vehicle warmed up at operating temperature, try moving the harness around to see if you can induce a stall.
Wiggle the connectors at the throttle position sensor, IAC sensor and the two connectors at the rear of the rocker cover (one is gray, and the other is black) see if anything happens.
Try wiggling the wiring at the cam sensor and the crank sensor.