fivepointohman Posted April 14, 2008 Report Share Posted April 14, 2008 Hello everyone while I am on way back from Mrylte Beach with my Cadillac and I am getting a Emission system Error everytime I shut the car down and start it back up again. The display says service emission system. Also I had to disconnect my IAC and I am now driving with the IAC closed. Has this hever happen to anyone else and if so what was the fix? It will back fire on take off and then go into limp mode. I had to stop a bunch of times to disconnect the battery to reset the computer in order to continue driving because it went into limp mode. After resetting the computer the car will run 400 miles straight with no problem but after i turn the car off and restart it it goes back into limp mode. I have changed every sensor in the car and I am still having this issue. I am currently in Virgina heading a back to New York. FYI.... I ran all levels of octane gas on my trip and the car runs best on 89 with 450 miles to the tank. and I know this becuase I got a speeding ticket on my way back. Link to comment Share on other sites More sharing options...
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