wont start and has a shifting problem

I have a 90 xj 4.0 and its not working right now.


I put hood scoops on it and it was running fine before i did that. Now that the rain hit the jeep wont start. I have no idea what i can be. it did this about a month ago in the rain and after it was sunny for a few days it started up. any thoughts?

it wont shift until red line and it wont start out in first gear until its warm. I hear all the time check the TPS but i dont know how. im no good with electrical. Is anyone out in the Novato area and want to come over and help me out?

http://www.lunghd.com/Tech_Articles/Engine/Basic_Sensors_Diagnostics.htm

Scroll down to the TPS info.

Multimeter and two small paper clips with one end straightened on each for back-probing the Weatherguard connector.

Thanks again Joe.

i just noticed your sig and we have the same jeep. do you have a write up on how to install the drop transfer case spacers? i also got the 19# injectors and wanted to know if i can send you a pic and you let me know if i got the right ones?

poomero said:

Thanks again Joe.

i just noticed your sig and we have the same jeep. do you have a write up on how to install the drop transfer case spacers? i also got the 19# injectors and wanted to know if i can send you a pic and you let me know if i got the right ones?

Click to expand...

The tc drop is easy. put a jack under the crossmember. Loosen the bolt/nut combo on one side but leave attached. Support the crossmember with the jack and remove the bolt and nut from the other side. Double-nut the stud and remove it. Install the spacer using two longer bolts, but don't tighten all the way. Do the same for the other side--done.

PM to you with email address.