Hi everyone,
After getting my car back complete with new (second hand) fuel pump, temperature sensor and ECU and a brand new pattern Lambda sensor the engine now 'pinks' under load below about 2200 rpm. The fuel economy is a little better maybe 5 or 10% but that could be down to proper fuel atomisation now that the pressure is restored.
I would like to avoid melting a piston if at all possible so need to fix this soon.
Any suggestions
Is it possible to retard the timing or richen the mixture or is this all controlled by the dreaded computers?
I might try the old brain back in just to see if that's the prob.
Over to you
John