Pharaoh XJ
NAXJA Forum User
- Location
- Cairo, EGYPT
I recently had to change the freeze plugs on my 1994 4.0 auto, Had to take off intake/exhaust manifolds for the install.
After putting everything back together I started the engine hesitated a bit at first then it stabilized.
Then later after I drove it for a long drive was going fine, went to the store then came back out the engine idle really low revs then went back up. the revs kept paying from low to high, when I drove it, it didnt want to go over 2000 revs, then suddenly goes past it.
It stays like that for 10 mins then everything is back to normal, its done it three time in 4 trips.
btw : it threw codes
52: O2 detects rich mixture. Check fuel injection system and sensor.
although I dont have an O2 sensor --> leaded fuel ECM
&
12 : Battery or power to the ECM disconnected in the last 50 key cycles.
Any ideas ??
After putting everything back together I started the engine hesitated a bit at first then it stabilized.
Then later after I drove it for a long drive was going fine, went to the store then came back out the engine idle really low revs then went back up. the revs kept paying from low to high, when I drove it, it didnt want to go over 2000 revs, then suddenly goes past it.
It stays like that for 10 mins then everything is back to normal, its done it three time in 4 trips.
btw : it threw codes
52: O2 detects rich mixture. Check fuel injection system and sensor.
although I dont have an O2 sensor --> leaded fuel ECM
&
12 : Battery or power to the ECM disconnected in the last 50 key cycles.
Any ideas ??