Engine knocking and then I scanned
I drove my daughters car today and I loved it. Had lots of power and transmission shifted great. It was a nice day here with temps in the mid 70'* so I had the windows down. Well I heard some engine knocking during acceleration I didn't like. It didn't seem to effect the performance though. I hook up scanner and notice some strange numbers. I have always got KS but no KR. I took it back on the road after I cleared codes and as usual no KR. Keep in mind CEL wasn't on. The knocking got worse when I got gas.
The two codes were:
P0406: Linear EGR Pintle position Error- I found through search and I'll take off and see if I can clean EGR first.
P0171: Fuel Trim sensor signal lean.- Couldn't find what it means
Other odd info: (I believe these had 0 values before)
RPM Failed 98
RPM Passes 255
MAP Failed 2
Like I said I cleared codes and drove for about 15 minutes driving up to 45 mph. Scanned again and got no codes. Any thoughts on where I should look?
The only dumb question is the one you didn't ask!
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