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So does it fire when you let the key back into the Run position?

CPS should be fine if it starts. My Tips have a test for it.

Your TPS could also be an issue. Again, Tips has a procedure to check it.

Ever replace your fuel filter or check fuel pressure?

 

When the key is in the run or ignition it does not fire but just crank over, i need to hit the throttle a bit to get it to fire and get running.

Haven't checked either but will do, the TPS is next to the IACV if i'm not mistaken right?

Haven't checked the filter or the fuel pressure, will replace the fuel filter when my shop gets it back in stock. The pressure though, needs a special tool right?

 

Check the line from the throttle body to MAP sensor on the firewall. If that leaks vacuum, the Jeep will run real rich and not start well unless the gas pedal is nearly floored. Also check the electrical connection on the MAP.

 

Alright, well I might as well replace it since I replaced all those other vacuum lines already.

Check the connections with a multimeter or just check that they're not broken/dirty etc?

 

Good luck finding that hose. Dealer only if you can still get it.

The clip that holds the wires to the MAP is many times broken and it doesn't plug in securely. Makes it run rich as hell.

 

The hose? You mean the thin plastic straw thingy?

Ah, will go through that and check it - hopefully it's something that you suggested (easy fix)

 

Yes and easy is good.

 

One thing I was also wondering about was the distributor cap and the ignition cables. How do I know which cable goes to which sparkplug? I see that the engine has an ignition fire sequence stamped on it but It doesn't really tell me much.

Just wanted to go through so that they're all lined up correctly.

 

wow very interesting reading here. cruiser54: props to you for being so helpful to andrew. Im thinking Andrew you should just consider purchasing a plane ticket for cruiser so he could have a nice working vacation in a beautiful country. At the very least you should stop by prescott and say hi when you do youre la to ny run

and i would think you would know if it were miswired the motor would be shaking and there would be a definate loss of power. in addition two of the exhaust ports on the manifold would remain cooler than the rest on startup due to a lack of proper firing order. click on this for a pic of proper firing order

http://www.bing.com/images/search?q=...lectedIndex=11

 

My better half and me will be taking the "south" route through the country and we'll be passing by prescott so i'll hopefully be stopping by cruiser and buying him a pack of beer as thanks for all the help

And thanks to you as well for the firing order, will be taking a look and making sure everything is good. But would the engine show it that clearly if let's say if 1-6 were mismatched?

 

I'm not on my PC or I'd post some stuff up that would help you verify the plug wiring sequence. Freegdr has it and hopefully he'll post it up. If not, I'll do it later today.

And, we have a brewery here in Prescott......

 

the short answer is yes it should be obvious as you would only be running on 4 cylinders

 

I'll be out at the jeep tomorrow again. Today i tried to get the passenger door off and seemed to have "broken" the switch for the door locking. Some metal tabs just dropped out of the connector when it came loose - hmph.

And we'll, we'll figure out something :P quite a while to go before we're in the US and a bit more until were in Arizona!

But even though they're firing in the wrong order, they will still be firing that's what I was wondering - ofcourse the power loss would be obvious but still - I doubt they're wired wrong but doesn't hurt to check!

I check the MAP wire connector and the vac line and cut the original plastic tubing and replaced most of it with new vacuum tubing just to be on the safe side. Didn't seem to be any bad connection in the connector, fits and clips in fine.

Started the engine and it now fired after quite a bit of cranking (about 5+ times). Might be a coincidence but i'll try tomorrow and see if I can reproduce it.

 

Keep in mind that a longer than you're used to cranking time is normal on your Jeep.