Engine light flashing on my 2001 jeep cherokee 4.0 and engine sputters on throttling.

my guess is the gearing , that reverse has is very low.
and with lower gearing a weaker engine can run
id bet you if you use your right foot, on the throttle as you
go to drive, it will move, or use L gear.
the sputter, is not related to the transmission
Sputter is gross misfiring of the engine, 4.0L?? what engine?
and the top cause of that. is not getting a tune up.
spark plugs. ever do those in 10 long years.'
or spark wires>?
filters, fluids and spark? a tune up.
the Jeep runs a map sensor, so does not sputter with air leaks.
the jeep IAC can stick. and not hold an idle ,in drive.
but you can with a fast right foot, if not , its gross misfire for sure.
your right foot is not gas its air
when you press the throttle you add air and the EFI matches air with fuel. in that order
so if it still sputters, is not the lack of air. see?> spark is next,.

for 100 years folks avoid tuneups, is that you? the classic cause?

When they sputter it is mostly the fuel pump. One way to check is hit the bottom of the tank in the center. The vibration will jar the pump and most times they will start pumping again. This is not a fix, you still have to replace the pump. This is just an easy way to make sure your changing the right part.

Try cleaning the throttle body by spraying a throttle cleaner into the throttle body.

It has to be your throttle is wide open, probably a stuck throttle cable.

do a compression check on the engine, and replace the bad sensor, i take the throttle body off to clean it and some sensors are touchy about cleaner, i fear maybe something got on the egr valve pintle

check the exhaust manifold.It is prone to cracking at the expansion joints.Causing you to smell exhaust and confusing the upstream o2 sensor

Sounds like a fuel/air problem. Replace fuel filter, check/replace air filter and spark plugs, complete the tuneup and see what happens. If it still happens then suspect injectors. Run cleaner through a tank of gas. If still the same take it to a shop that can plug into your vehicle and verify injectors performance.

My 2000 Grand Cherokee had the same problem, without all the sputtering, it would just die approaching a stop. We could only keep it running by slightly pushing down on the gas petal when coming to a stop. I replaced the Throttle Position Sensor, but that didn't change anything. A new mechanic I found replaced the Idle Air Control Valve, and we've had no problems in a week.

i had the same problem with my 2001 Cherokee Sport i replaced the battery and now it runs fine.

warped heads will cause this...if it over heated badly thats going to be the problem