Do installing performance catalytic converter give a check engine light?
Me either I'll have to do some researchIf I remember, the downstream O2(after converter) tells the ecu how good the converter is working as it compares it to the upstream O2. The upstream o2 tries to keep air/fuel ratio at 14.7 to 1. I don't know what a performance converter would do.
Need to replace mine and wondering if the performance catch would give a check engine light that would be there when I go to trade it inMe either I'll have to do some research
Normally, no. However, if you stepped up in size and started in with larger camshafts, this could present a problem.Do installing performance catalytic converter give a check engine light?