Here's the deal: after my auto to manual swap on 97 civic EX d16y8 engine, I did 0-60 mph in 8.6 seconds with CAI. Few month past i'm feeling that my honda is accelerating like **** I measured 0-60 once again an got 10.0!
There's no error codes, no oil burning. I have bad drivers side upper engine mount, and bad spurk plug wires, When I'm hitting into the little hole in the road it engine faultes for a while. I'm not shure that all I mentioned above can cause 1.5 sec lost. Any suggestions? What should I check first?