2000 frontier losing power and sputtering around 60mph after 45mins of running and check engine light flashes

SOURCE: when i have my engine running and i switch on my

i had this problem with my 98 nissian frontier it was 2 things [1] my battery was dead and was not holding charge[2] the belt that runs over the alternator and the radiator fan was really worn i had to replace batter and belt

SOURCE: check engine light

Your vehicle’s computer system has self-testing capability. When the computer senses that there is a problem with one of the components or sensors it stores the correspondent trouble code(s) in its memory and lights up the "Check Engine" or "Service Engine Soon" light to tell you that there is a problem and you need to diagnosed and repaired it. The light being on could be related to the gauges not working, First step is to find out what codes are present.

SOURCE: No power to cigarette lighter. have checked and

there are 3 fuses that operate that. #42 (15 amp) power socket, #18 (10 amp) power socket relay (power socket only operates with key on) and #23 (15 amp ) Cig lighter, key on.... have you checked all 3 fuses??

SOURCE: Engine sputters while check engine light flashes

The issue is your Mass Air Flow Sensor (MAF) and more than likely also the Intake Air Temperature Sensor (IAT) which is part of the MAF housing. Both are probably malfunctioning. This can be due to an overused/very dirty air filter, or even an aftermarket air filter (that uses oil on the filter element), or diriving in very dusty/dirty areas.

2 fixes.
1) Get MAF cleaner of Electrical connection cleaner in a spray can from your local auto parts store. Locate the MAF, which is on the intake tube, drivers side, just after the air filter. It is held down by 2 hex screws. remove it (try not to touch the metal with your hands, and DO NOT touch the little sensors that look like wire resistors you will see inside, if you touch them, it will no longer work!), spray it VERY WELL with the cleaner (use the whole can if you feel the need) let dry in ambient air for at least 10 minutes, re-install and like magic, your car will start & run, probably better than before you had the issue. The CATCH IS, this can end up being a short term fix, may happen again after 10 miles, or 20,000 miles, but it will more than likely happen again.
2) Replace the MAF with a new unit, or have your vehicle serviced under warranty, and have the dealership replace this part.