questions about check engine codes
 

So I have found myself stubbornly driving a 190e 2.6 after five previous diesel benzos. When I bought the 190 it came with a check engine light on, I counted the blinks to retrieve the codes, I have code 11,16, and 29.

16 is the egr which I know how to service. But code 11 is labeled air injection system... what am i looking for to fix this code? Is there a sensor that needs replaced? I am just as confused about code 29, which is labeled difference in coolant temperature between CIS-E and EZL... again what kind of repair does this refer to?

thanks

bump

Year????????????????????????????

its a ninety one, anyone out there? I am not familiar with these gasoline engines, I wish it were a damn diesel, frankly. whichever if someone could chime in and answer that would be cool.

My check engine light comes on once and while too. How do you check the codes and where do I get the info?

Clearly Im hearing from the crickets on this forum... Where do I begin looking in my air injection system for a fault, and let me chime where do I look for a the fault between the coolant temps between my EZL and CIS-e? anyone? Am I in need of a fsm? Its definitly a ninety one...

The 4-pin coolant temp sensor at the back of the cylinder head (driver side). That's actually 2 sensors enclosed in a single connector. Both sensors are identical thermistors, but one supplies signal to KE controller and the other to the EZL. Test diagonal pins (1-3 and 2-4) with ohm meter and compare to resistance-temp scale shown in FSM. Readings from both sets of pins should be identical, or nearly so, throughout the temp range. If not, there is a mismatch between what the EZL and KE controller are reading.

excellent thank you very much, where should I begin trouble shooting code 11, air injection system??

Check out this thread for the air injection system