Quote:
Originally Posted by cfg83
KJSatz -
I think if you have a "one wire" 02 sensor that depends on the exhaust heat to get hot enough to work (like mine), it can cool off if you do a lot of bump starts. If the 02 sensor gets too cold, the ECU/PCM will go into open-loop mode, which is not as fuel efficient. If you have a "four wire or more" 02 sensor, then it is probably self-heating and will stay hot when the engine is off.
My car has two 02 sensors. The second one is post-cat and does have 4 wires. If I had my druthers, I would convert my 1-wire 02 sensor into a 4-wire, just like my other sensor. That would get me into closed-loop mode faster.
CarloSW2
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You need a front belly pan and grill block. Everything under the hood will stay 150f. Including the battery which I just had to replace.
So far I've replaced all the motormounts and recently the battery went south.