No power could be clogged exhaust/converter and or clogged fuel filter/bad fuel pump. You still have some diagnostics ahead of you unless you drive it to a Dealer or a shop.
Managed to drive it Autozone, they said I should take it to the dealer to get scanned.
They pulled stored codes: P1031 - A/F Sensor 1 heater control circuit low
P0725 - Engine Speed signal circuit
But they might have been from me unplugging sensors.
Someone mentioned it sounds like it is running in 'Limp Mode' and I should try to reset/clear the ecu. -- "I'm against picketing, but I don't know how to show it" - Mitch Hedberg
reply to LeftOfSanity Sanity, did you find the problem with your 'crank,no start' with your Altima? My 2002 2.5 Altima does the same thing, BUT I have to disconnect the 'Camshaft sensor', as opposed to the 'Crankshaft sensor', in order for it to start up. I have acceleration but not near the full torque power I'd expect. New crank & cam sensors but still same problem. 3 expert mechanics are baffled. not spending another dime for new parts in order to 'hit & miss' the issue.
