4L60E limp mode help!!!
Moderator
Joined: Aug 2010
Posts: 7,322
Likes: 528
From: Ann Arbor, MI
You should connect a good scanner and check for all codes. Some codes are "hidden" and do not immediately show as a CEL, but still can affect the trans.
Did this suddenly happen while driving or after some engine/trans work?
Did this suddenly happen while driving or after some engine/trans work?
Thread Starter
Teching In
Joined: Nov 2014
Posts: 15
Likes: 0
I'm finishing what someone else started but it's been like this. I'm thinking either the ecu is messed up or maybe the ignition switch..it doesn't have any cats and the o2 sensors aren't hooked up and still no cel or codes.
Moderator
Joined: Aug 2010
Posts: 7,322
Likes: 528
From: Ann Arbor, MI
How do you know there are no codes? What scanner did you hook up.
If a good scanner shows no codes, they it might be time to go back to a stock tune and start from there with a good tuner.
Where are you located?
If a good scanner shows no codes, they it might be time to go back to a stock tune and start from there with a good tuner.
Where are you located?
