shaggybob
NAXJA Forum User
- Location
- Chattanooga, TN
I've searched and searched and that's what's resulted in testing so many things yet no results.
1995 4.0 Automatic Trans
Well, let's see:
Fuel Pump = Good(pressure checked out)
IAC = Good (was frozen now replaced)
TPS = Good (goofy readings, replaced)
Coil = Good (Resistance checks in spec)
Ignition pickup = good (Checked a little iffy, replaced)
Cap and Rotor = good (Were corroded, now replaced)
plugs = good (A little fouled from issues, cleaned and reinstalled)
wires = good (Checked to be within spec)
CPS = good (Checked against new one, is good)
o2 = good (Replaced a year ago, should be good)
Coolant sensor = good (Checked, also replaced in Harlan)
MAP = good (Tested Good)
Charging system = good (Tested good)
battery = good (tested good)
voltage to injectors = good
resistance across injectors = good
running = Bad, missing at idle, stumbles and stalls with throttle input, runs fine above 1300 rpm, if I can get it above that point.
The only other weird issue is that the ECM quit controlling the e-fan on July 1 of this year. No output from ECM to relay when fan should be on.
Things I haven't tried, noid light on injectors.
Any other suggestions?
1995 4.0 Automatic Trans
Well, let's see:
Fuel Pump = Good(pressure checked out)
IAC = Good (was frozen now replaced)
TPS = Good (goofy readings, replaced)
Coil = Good (Resistance checks in spec)
Ignition pickup = good (Checked a little iffy, replaced)
Cap and Rotor = good (Were corroded, now replaced)
plugs = good (A little fouled from issues, cleaned and reinstalled)
wires = good (Checked to be within spec)
CPS = good (Checked against new one, is good)
o2 = good (Replaced a year ago, should be good)
Coolant sensor = good (Checked, also replaced in Harlan)
MAP = good (Tested Good)
Charging system = good (Tested good)
battery = good (tested good)
voltage to injectors = good
resistance across injectors = good
running = Bad, missing at idle, stumbles and stalls with throttle input, runs fine above 1300 rpm, if I can get it above that point.
The only other weird issue is that the ECM quit controlling the e-fan on July 1 of this year. No output from ECM to relay when fan should be on.
Things I haven't tried, noid light on injectors.
Any other suggestions?