hesitate /engine light on
 

i have 96 c220 , that i just had the hiring harness replace and had a brand new engine computer install , since the old one burn out. but , now my engine light came on and a few months ago i had both oxygen sensors replaced. ........please help?

also, after 60 mph the car starts hesitating ( jerking )??


anyone that can help me , please give me guidance .



thanks
lewis

Go back and see if they will help you. There are many things that can cause the jerking......

ON most newer cars when the check engine lamp comes there are at least 40 different things that can cause the checke engine lamp to come on!!
Only maybe one in 20 is from a bad 02 sensor!!
HAVE someone read the computer codes to make a correct diagnosis.

i went back to the shop. they told me that they read the codes and the codes were old code that were there before they change the wiring harness. they cleared all the codes ,but a few hours later the light came back on . and the car continue to jerk.
to be honest i am tired of taking the car to the dealer or that particular shop.

i will have some some else look at it, but meanwhile i would like to get more advice on this problem.


thanks
lewis

can it be the catylist converter causing the hesitation ?



please advise,

lewis

Now that the old codes have been cleared and the CE lamp has come back, you need to go get the recently tripped code . That will tell you what you want to know....Go back to square one
They should have cleared all existing codes when they changed the wire harness...but they didn't. So...
Don't start guessing when the info is there for you...
If you prefer to go get the code elsewhere, so be it... just get the code for proper diagnosis...