I have a 97 accord with 200K miles. For over 30K, I have been experiencing engine ping at part throttle. Two mechanics haven't been able to find anything wrong during general inspection periods. I recently had a tune up and valve adjustment which didn't do anything. I tried a bottle of techron in the gas tank, which also didn't help. If I try a higher octane gas, the ping either improves and sometimes dissapears, however I would rather not use premium gas. I tried all kinds of brands of 87 gas, no difference. I installed a new radiator a while ago and my coolant level is fine. Recently, my check engine light came on. The fault code EGR Flow Insufficient P0401. I reset the engine light and it hasn't come back in about 1K. I plan on taking my car into my mechanic in the next few days. Could this fault cold have anything to do with engine ping? Any other suggestions to help fix this problem? Thanks
- posted
17 years ago