Question about 1998 Dodge Ram 1500 4WD
Truck does accelerate without spitting and sputtering except at full throttle
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: 94 dodge ram pickup 1500 v-6
Many dodge models actually have two o2 sensors. I'm not sure if this applies to your model. If so, one is on or just downstream of the exhaust manifold. The other on the outlet pipe of the catalytic converter.
The PCM compares the readings and adjusts the fuel/air mix to keep the catalytic converter operating at max efficiency.
A malfunction in any portion of this sub-system could cause your symptoms. So let's run a test on the o2 sensor(s).
To do this manually, get a pad, a pen, your keys and get in your truck.
(the procedure for entering diagnostics may vary, but this works for the dodges I've worked on)
Question: Of all the possible causes, why did the o2 sensors get picked as the cause? Is there more to the story?
Any way, run the tests, perform the diagnostics and get back with me, we can go from there.
Hope this helps
Posted on Jul 29, 2008
SOURCE: 1998 Dodge Ram 1500 won't start
still sounds like the timing belt/chain to me,especially since it just shut off goin down the road, had a 93 that did the same thing,dodge has a kind of safety switch that if the timing belt breaks the engine will shut down to keep you from tearing anything else up.
Posted on Mar 06, 2009
SOURCE: Electronic Throttle Control
I had same problem on mine. The wire harness under the throttle body cover rubbed and was cut in two. If you remove the cover and unplug the etc you can feed the harness under the plug wires to inspect them.very common problem on this vehicle.
Posted on Jun 03, 2009
I also have an '03 Ram 1500 with the Hemi, and I too noticed that the throttle system definitely sucks. The issue lies with Chrysler opting for speed density instead of mass air flow, which is what the Hemi should have. I landed an a chatroom that had a procedure to try to fix the throttle response. Simple procedure.
1. turn the Ram on, but don't start.
2. wait 7 -10 seconds for onboard diagnostics to cycle and finish.
3. press the accelerater to the floor, using moderate leg speed and then let up.
4. shut Ram off, wait 10 seconds.
5. start up
After using this procedure, my Ram finally accelerated like a Hemi Ram should. The chatroom said that for some reason, this won't work on every Hemi Ram, but since you don't hook up into the computer, it's worth a shot.
Best of luck!
Posted on Oct 08, 2009
p0203 injecter circuit malfunction cyl #3. p0204 injector circuit malfunction cyl#4. po138 02 sensor circuit,high voltage cylinder bank no.1,sensor no.2
Posted on Feb 17, 2010
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