car suddenly wont start - never ran great anyway, esp. cold, now cranks, but won't st

rjSupra · 03-01-2011, 02:07 AM

Ok, this is good, but weird. The car started on the 2nd try today.
It seemed like it was not actually running, but I let off on the starter ignition key and it chugged on it's own slowly and then ran. It idled normal.

It was probably 17 degrees that other night. A car guy I talked to tonight said it was probably the 02 sensor is shot, and the car is only in one mode - like an 'emergency' type of mode, b/c the sensor can't detect when it's running too rich and to cut back etc etc...

Does this all seem to make sense? He said if it was the ignition coils it would not run period, and it was running like it always does (not super strong and crappy fuel mileage) tonight. So maybe I just pop in a new 02 sensor and that could be the end of that?

Thanks!

03-01-2011, 02:07 AM	#13
rjSupra 3" Exhaust Join Date: Sep 2010 Location: NH Posts: 86	the car started today. it was 37 degrees out. Ok, this is good, but weird. The car started on the 2nd try today. It seemed like it was not actually running, but I let off on the starter ignition key and it chugged on it's own slowly and then ran. It idled normal. It was probably 17 degrees that other night. A car guy I talked to tonight said it was probably the 02 sensor is shot, and the car is only in one mode - like an 'emergency' type of mode, b/c the sensor can't detect when it's running too rich and to cut back etc etc... Does this all seem to make sense? He said if it was the ignition coils it would not run period, and it was running like it always does (not super strong and crappy fuel mileage) tonight. So maybe I just pop in a new 02 sensor and that could be the end of that? Thanks! __________________ 88 Supra 7M-GTE Turbo, TEMS, Targa stock