If there is too much air for the fuel supplied, the mixture is termed lean. In either case, because the uncombined excess molecules carry away some heat but generate none, energy release is ...

E85 in a non-flex fuel vehicle can cause misfires and cold start issues. Learn how to diagnose and correct ethanol-related fuel problems.

A vacuum leak can trigger a “check engine” light because the fuel system is running too “lean,” meaning it has a greater mix of air than is ideal. Vacuum leaks can develop in many ...

Bajaj says they didn’t use triple-spark tech here as meeting BS6 norms reduces the lean air-fuel mixture combinations which the triple spark setup leveraged. There are no ride modes here either.