Please help with a Jeep Cheroque

I have a Cheroke the problem is a cold spinal scara is and it works for 10 minutes to oscillate the RPM 300 to 2000 rpm only without accelerating everything was fine to repair the automatic box and spark plug and last He no longer wanted to scratch and what will be the problem, I will appreciate him enough for his help.

I had a similar problem, check the pump relay

Check the ground connections, especially the motor to the body, and check the battery state since the minimal battery voltage failure makes you work the compystator and the module badly. I have an 1988 and when I start to fail I maintain the electrical system and it is a good time.