I think my map sensor may be bad or going bad

THATS NORMAL IF YOU UNPLUG M.A.S.S, YOU COULD HAVE AN I.S.C GOING BAD.

Electrical contact cleaner is not good for map or maf sensors. There is a special cleaner for this however I have never actually had any luck with the cleaners. It very well could be the sensor going bad. Not being familiar with your car I can say I had the exact same issue with a 97 mercury cougar and it was the sensor. I would double check the plug making sure the gap is correct and it is not cracked, check the wire (swap to another cylinder if you can and see if the error code swaps as well), check the coil pack as well.

when all else fails go to a pep boys or Firestone, let them check it. You cant by - pass good service and new tools. Advance Auto Parts has the handheld device

Manifold Absolute Pressure/Baro Sensor Range Out of Limits.

You have a bad MAP sensor or a vaccume leak going to the sensor. If you can't find a valid leak to the vaccume lines at the MAP sensor you have a bad MAP Sensor. Check the Vaccume lines FIRST.

are you getting power to coils, if not it could be the ignition switch, one major sign of a bad switch is dash lights go off. vehicle may crank but not start,no current to fuel pump, stalling, failure to start.

Check the MAP sensor. To see if this is the problem, assuming that the Jeep won't start but is turning over, unplug the MAP sensor and then plug it back in. If you can start it now, the MAP sensor needs to be replaced. The MAP sensor is located in the engine compartment, where the firewall meets the body at the top of the engine compartment, on the driver's side. Good luck. check map sensor first!

bad map sensor or no vacuum to map sensor thats where id start

what year? a bad map sensor will cause rough running and sputtering and very bad smell like a rotten egg smell through the exhuast. try tapping on it lightly with a scewdriver when running or trying to start, if it acts up when tapping, that is the cause and very easy to replace. when the fuel pump was replaced, you need to replace the fuel filter. the filter clogging is almost always the cause of the pump going bad.

If the sensor is bad it causes the computer to change air/fuel mixture for the fuel injection and would have that effect,other possible causes would be a clogged fuel filter or the fuel pump is going bad but you need to change the map sensor if it is sending a code.

Assuming it has a 3.1 V-6, it could be any # of failures. Bad plug wires, ignition coils, control module (under coil packs), crankshaft position sensor, map sensor, throttle position sensor, egr valve, fuel pressure regulator, fuel injectors, engine coolant temperature sensor, vacuum leaks; have it scanned for trouble codes to help in diagnosing! If you think it is just over fueling (flooding),look at fuel pressure regulator or coolant temp sensor ( when they fail the computer thinks its always -40 F causing it to over fuel). A bad map sensor can cause the same. Hope this helps. Thanks in advance for rating me!

I'd lean toward the MAP/MAF sensor because of the rev limit. A car with a bad O2 sensor will still rev to redline - it'll just be running rich the whole time. Some manufacturers put in a rev limiter that kicks in if the MAP/MAF sensor goes bad, so I'd lean that way first. Clean the electrical connector with contact cleaner, and run a half a can of Seafoam through the vacuum system - this may clear up your issues. If not, I'd replace the MAP/MAF sensor before the O2 sensor.