Crapy running bronco 2

Blue Fox 4.6 · #1 (**permalink**) 06-23-2009, 12:53 AM

ok to start off the bronco was burn under the hood the wirin burt. so i put a harness on it an a ECM. but u can start it up an it will run fine but it will slow down a cut off, u can tap the gas an it will run fine an so on till it worms up thin it will stop. but u start to go down the road an its like its diein out u can mash it to the floor an it will pick up an go fine but thin start to die out agin but if u hold the gas still an not move it, it will **** there an bog an bog thin outa no were it will puck up an run fine, 4 bout a mile or too thin do it agin, an it dont allways do it sometimes u can to to the store an it wont do it thin cumin back it wont cum up a hill till it snaps out its lil spell iv
replaced the
ECM with 2 ECMS
4 MAP sens
3 TPS sens
6 IACS
on my 3rd fuel pump, the 1st on it was the factory one an it just guit over night an the 2nd one die after 1 week an i just put one on it today
the gas smells like its been in there 4 a year lol i put 2.5 gallons of 110 in it today an drove that all out hopin that will help but that just got rid of the popin back in the intake

Jab'sBronco2 · #2 (**permalink**) 06-23-2009, 04:05 AM

Have you done a simple tune up?

Sounds like you are just over shooting the issue, it will run but slowly dies off correct?

here is what i would check.

Bad Fuel,try draining and starting fresh, also check the fuel filter, while your at it make sure the fuel pump is working strong.

Plugs,wires,cap,rotor

If everything checks out the maybe run a can of injector cleaner through, maybe you have a clog.

Reply when you can.

kernel-panic · #3 (**permalink**) 06-23-2009, 09:13 AM

What year is your BII? I'm wondering if your ignition module is bad. You need to check all the sensors and/or pull diagnostic codes as well. Plenty of into in the READ FIRST Tech Info section on this forum...

Blue Fox 4.6 · #4 (**permalink**) 06-23-2009, 11:01 AM

ok well i put a new fuel filter on it to i just 4 got to minchin it lol mybad,
but iv ran the gas out an put 110 racin gas in it an so far it ant helped but i only drove it like 20 miles
i ant put plugs wires an cap on it yet it just dont ack like them but i could b rong
can that module on the side of the distributer do this?

Jab'sBronco2 · #5 (**permalink**) 06-24-2009, 03:41 AM

the module can do that, take it off and take it in to be tested.

at least inspect the cap / rotor i had a buddy who spent around $300.00 on misc parts for his B2 and still couldnt get it to run, and it turned out to be a hairline crack in the Distributer cap.

Good luck