I would be interested to know if you were running in power enrichment (PE) mode during those long climbs.
The engine would be (should be) running rich whenever PE is enabled, by intent.
IIRC, PE doesn't come into pay on a stock, OE tune unless the TPS is pretty "open", e.g., above 80% or 90%, and then only after the "PE delay" which is typically 5-6s.
You probably have no way of determining this without a scan tool, and it may not matter, but I'm curious all the same.
This all seems counter to Code 44 "Lean condition", but I'm wondering if it's not related.
The engine would be (should be) running rich whenever PE is enabled, by intent.
IIRC, PE doesn't come into pay on a stock, OE tune unless the TPS is pretty "open", e.g., above 80% or 90%, and then only after the "PE delay" which is typically 5-6s.
You probably have no way of determining this without a scan tool, and it may not matter, but I'm curious all the same.
This all seems counter to Code 44 "Lean condition", but I'm wondering if it's not related.
Last edited:
