was my cam sensor bad all along?

Question

For the past 3 months i have been pulling my hair out about my 1997 jeep grand cherokee.
It has 190,000 miles on it.
It was stalling for no reason and just would hesitate at different times.
For 3 months no code or check engine light would come on.
3 mechanics couldnt figure out what was wrong,it was a guessing game.So i had every part i could think of put in.New fuel pump and filter,new cat converter,new computer,new IAc,new PCM,tuneup,but nothing helped.
Last week i brought it one last time to a friend who works in a shop.He came up with code PO351 and 43.
One is a misfire and one is an ignition coil issue.He had it for 3 days and tried telling me it was the wiring harness.I didnt think so.I took it home and was ready to sell it when that night for some reason the check engine light came on?It didnt ever do that.I looked it up and it was code 54 and PO340,cam sensor?But no code 43 for misfire????
I decided on a hunch to try one more time and took it to another shop,this time i told them the engine light came on and so they pulled the codes.They replaced the cam position sensor and BAM,the jeep is good as new!!
Im guessing that all this time the cam sensor was starting to go bad but not enough to throw any codes nor an engine light!Once the engine light came on,i was able to catch it.
Does this sound right and if so,then why was i getting a misfire code all this time but that disappeared once the cam sensor was replaced?

Answer 1

yes it will cause this problem. its very common. they must not been very good mechanics. its a very very common thing. misfire would be cause that sensor says the engine is turning and works with computer to tell it to fire soo if its not functioning all the time it will fire part time and miss at times so causeing the misfire and would die at times cause it gets so bad and could possibly flood itself. its very common. atleast u got it though. should be good to go as long as it didnt flood plugs too badly too many times,

Answer 2

To answer your question. The reason you got the misfire code, was the timing was off and the computer fired at the wrong time. Some parts won't pop anything right away, cause there is a percentage that they have to be off in order to give a CEL or code. Once is went out of limits, is when it popped. Hope that helps answer your question.

Answer 3

Don't fill bad they all do the same thing but with no code your trying to find a ghost in a snow storm,you can only take your best guess and grab,and that's know way to fix a car or any thing I'd rather it just quit then you would know what to do but hay been there done that I spent 3 weeks trying to find stupid things like that trying not to wrong my customer buy putting on parts they did not need but its a nightmare out there be safe my friend