Ok, so i recently got my timing belt/water pump replaced and they said that they had also fixed a vacuum seal or pump or whatever and I was wondering #1, what is this exactly and #2, does this have to do with the spark plugs and If they would have gotten changed out (and is there a way to tell?). Now my check engine light is on again and I got the code P2187 and all i could find out about it is it means System Too Lean at Idle Bank 1. What does this mean?? I'm trying to figure it out on my own so i don't have to go back to the shop and spend money on something if its an easy fix.
Unless you have access to, and the ability to use the tools indicated in red above, I'm afraid your going to have to leave this one to the pros. This will more than likely be the cause of your drop in mpg, not worn or fouled spark plugs (see my post in the other thread where you questioned whether they had been replaced). The code could also indicate you may have another vacuum leak, I'm sure someone will be along to help you with a way to best check for this. You might also return to where you had the work done, and suggest the repair work they did, may be faulty. of course in a tactful way.
MORAV
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