Fuel injectors electrical problem
06-23-2011 | 03:34 PM
#1
Thread Starter
Newbie
Joined: Jun 2011
Posts: 2
Likes: 0
Model: Cherokee
Fuel injectors electrical problem
Hi, new here and I own a 97 Jeep Cherokee 4.0 liter straight six with 143,000 miles on it. I just got
finished with replacing the exhaust manifold. All the electrical, vacuum, fuel lines are in place and I
tuned up the engine, plugs , wires, rotor, rotor cap, air filter, oil, and oil filter.
Now, from the first time I started it up it ran great just like a tune-up and exhaust repair would,
except that *Check Engine* light is staying on. So I go take it for a spin and after a mile or so all
the fuel injectors "at once" started to cut on and off so bad that I could hardly maintain enough speed
to get home.
I went over every thing on the engine and everything is plugged back in from the exhaust repair and the
injectors all still cut on and off and the *Check Engine* light stays on. The weird thing is, is that
while the injectors are firing the engine is perfect. I do not have a code scanner and I am afraid to
try and drive to the auto store.
Would any of you more enlightened Cherokee Techs know what may be causing this or should I ups in a code
scanner. Thanks for any help.
finished with replacing the exhaust manifold. All the electrical, vacuum, fuel lines are in place and I
tuned up the engine, plugs , wires, rotor, rotor cap, air filter, oil, and oil filter.
Now, from the first time I started it up it ran great just like a tune-up and exhaust repair would,
except that *Check Engine* light is staying on. So I go take it for a spin and after a mile or so all
the fuel injectors "at once" started to cut on and off so bad that I could hardly maintain enough speed
to get home.
I went over every thing on the engine and everything is plugged back in from the exhaust repair and the
injectors all still cut on and off and the *Check Engine* light stays on. The weird thing is, is that
while the injectors are firing the engine is perfect. I do not have a code scanner and I am afraid to
try and drive to the auto store.
Would any of you more enlightened Cherokee Techs know what may be causing this or should I ups in a code
scanner. Thanks for any help.
06-23-2011 | 03:42 PM
#3
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 31
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
have you read this b4 on scanninghttp://jeep-xj.info/HowtoECUcodes.htm...http://answers.yahoo.com/question/in...6152206AA8sLoT
Last edited by freegdr; 06-23-2011 at 03:54 PM.
06-23-2011 | 03:44 PM
#4
Member
Joined: Dec 2009
Posts: 224
Likes: 1
From: Southern California
Year: 1988
Model: Cherokee
Engine: 4.0
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