Miss fire/stumbling on accerltion
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Joined: Feb 2025
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From: Mount vernon Washington
Miss fire/stumbling on accerltion
My 1989 ranger 2.9 i cant seem to get it to no missfire or stumble on its self under acceleration. Kinda seems like WT seems to be better than 50% throttle for some reason.
I changed out the
-Ecu
-AIT sensor
-Tps
-O2 sensor
-disbrutor/wires/plugs and coil
-fuel pump/filter. Getting solid pressure to manual and rising under theottle movement
-cleaned throttle body..
-multiple TFIs. Checked plug and it getting all the readings.
-timing multiple times checked. Wire triple checked..
At this point I dont know what else to do.. other than injectors. I took the vavle covers off and the rocker arms are all moving and seem fine.
I changed out the
-Ecu
-AIT sensor
-Tps
-O2 sensor
-disbrutor/wires/plugs and coil
-fuel pump/filter. Getting solid pressure to manual and rising under theottle movement
-cleaned throttle body..
-multiple TFIs. Checked plug and it getting all the readings.
-timing multiple times checked. Wire triple checked..
At this point I dont know what else to do.. other than injectors. I took the vavle covers off and the rocker arms are all moving and seem fine.
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