Quote:
Originally Posted by kbod
There is a little dimple on each camshaft. I used white nail polish to mark the chain link to each dimple on the intake and exhaust camshaft so that when i cut the zip tie holding tension on each camshaft the tension pushed the cams apart but they were still in time. The dots lined up. I reassembled the engine then I did not install the oil scavenge pump, rather I put the camshaft not crankshaft in time, used the IMS camshaft locking tool to hold the bank one camshaft in top dead center timing, then i loosened the 4 bolts on the pullet on the side of the motor and turned the crankshaft to top dead center, inserted a dowel pin on the timing mark then tightened the 4 camshaft sprocket bolts. then i proceeded to reinstall the scavenge pump, removed the ims tool and completed the job. I believe that that is the proper way to time these engines as demonstrated in a thread i read on timing the m96. I have not had a chance to replace the camshaft position sensor, I am still waiting on the package I ordered a few days ago it should be in soon and ill put it in asap. I have previously cleaned my mass airflow sensor, I have not done anything other than a visual inspection for vacuum leaks. nothing is blatantly torn or ruined. Ill do a smoke test if the camshaft position sensor doesn't fix the issue. Im just wondering , if it was a vacuum leak why would the car specifically complain with a p1341 code rather than a generic missfire code. Later today Ill pull off the maf connector and report on what happens as well. and I forgot to mention, the car has no cracked ignition coils they visually look great and it has brand new spark plugs. and its fuel economy has been TRASH averaging 12.6 mpg thereabouts.
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So first:
It is very hard to diagnose a problem via the internet.
Second: It can be very hard to fix a problem that is diagnosed by well meaning people via the internet.
Multiple people will have different points of view on the problem and how to fix it.
As another poster has said simplest things first.
Lumpy idle is an indication of a vacuum leak.
So is stalling out when coming to a stop.
You have both symptoms so I suggested the possibility of a vacuum leak.
Simple and basic.
But you also have the P1341 code which is a Cam position sensor or cam position related code.
Bad Cam position sensor or bad Cam timing can also cause lumpy idle stalling at stops and poor fuel mileage
So in another post I suggested checking the Cam position sensor and its related wiring.
If I remember correctly you found issues with the cam actuator so you replaced it.
But you still have Cam deviation issues. Bad Cam position sensor or wiring (simple and basic) or bad Cam timing (not so basic) are all I can think of as causes.
The P1341 along with the Cam deviation issue is to me the most telling they are why I brought up Cam timing.
But I would change out the Cam sensor first and see what happens. Simple and basic.
So those are my reasons for my suggestions
God I hope I made some sense here. LOL
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