When it was warmer weather (70+) my XJ started up perfectly....but now theres a storm goin throw and its 47 right now. Just got in from driving it...got it to start while holding my foot on the gas. It seems once its warmed up good, it will run fine and hold the normal idle rpm...then for giggles I turn it off and then try to start it again, it would start, but only idle at 100 rpm then die. Any ideas as to why this is?

 

Help?

 

mine did this and drove me crazy for a while ended up being my map sensor

 

Okee dokee thanks

 

not saying that the problem it just cured mine i replaced coil, ignition module, tps one day it would not start so for ****s and giggle i tapped it with a screw driver and it started .I had to wait untill it would not start again smacke it started right up so i replaced it with one from a u pullit yard and never had this issue again in three years

 

MAP, CTS, IAT sensor could have resistance in their connections. Unplug them, spray out the connectors with a good electrical cleaner and reconnect. Heck, do all the connections in the engine bay while you're at it.

 

Gotchya...my dad think it has something to do with something else, we're gonna look at that before anything else

I was saying "okee dokee thanks" for the added info

 

This was happening to me last winter (when I first got my xj) ended up being a bad fuel pump fuse. Something simple/easy to check/fix. My 2 cents.

 

Fixed, starts right up now.

 

Share the fix so others can learn. Part of the deal here!

 

I was gettin to that, but had trouble putting it in words. One of my hoses to my air box wasnt on all the way