My 93 Ranger feels like a skip(miss) or is surging....What to do ???????
V-6 ...3.0 5 speed... I put new spark plugs in it & cleaned air filter.....Didn't help.

 

any engine light on? check codes and is the exhaust good... clean the iac and maf sensors

 

I cleaned iac & maf sensors...Didn't help. There is no engine light on.

 

i would still run codes

 

I will have to read up on my Haynes Repair book first.I am off Wed....maybe then

 

I run codes and got.....157,158,& 211
Haynes book says 157 is MAP sensor below minimum voltage and 158 MAP sensor above
maximum voltage......How can this be ??
211 says profile ignition pick-up circuit failure.......??