2001 Sebring won't start

I have a 2001 Chrysler Sebring with a 2.7 that won't start. It had no spark but had no trouble codes. I disconnected the cam position sensor and it started and had the PO340 code for the CPS. Then I plugged it back in and it would not start, no spark, and no code. Disconnected it again and it started and had the PO340. This is with the original CPS and with a new Mopar one. This engine has a new timing chain and all marks line up where they should. Any ideas?

there is some info missing here  did this start to happen right after the new chain was installed or did u install it and now it wont start    or is this something that happened awhile after the chain was done? and yes or no have u put a new CPS in?

The new chain was installed and it wouldn't start.I checked the chain and timing marks several times to make sure it was right. A scantool was connected and there were no codes. After talking to a mechanic at the dealer,  I installed a new Mopar CPS. Still would not start. Was told it could be CKS so I unplugged it to see if it would set a code, it did not. Plugged the CKS back in. I unplugged the CPS to see if it would set a code. The car started with the CPS unhooked and I got the PO340. Plugged it back and it did not start and did not set a code. 

There will not be ne codes because the engine has not seen cam and crank yet because it can not start up and run. With that info  i would say u have a wiring issue caused by who ever did the chain. The car will start up off either cam or crank with an sbec 3 computer. Either u can check to see if u have a wire pinched or shorted  whixh is what i think it is. Pull the crank snesor and with a volt meter key on there will be 2 wires that have 5 volts on them and one ground wire with 60 ohms of restance on the black wire. See what u have as far as thoe 3 wires and get back to me.

I got 9 volts on the orange wire, 5 volts on the yellow wire and about 60 ohms on the black ground. No wires were pinched that I can see. By the way, it did not run with the crank sensor unplugged. The new Mopar cps was not shaped exactly like the original. Is this just a change in design or is it the wrong piece. I saw an after market one listed for this 2.7 that looked just like the Mopar one.

Any other ideas on this.

What else was replaced  the chain and what else?  

Timing chain, gears and tensioner changed. Checked several times to be sure it was right. Matched to old set to be sure every thing was the same, timing marks, ect. Had no spark. Local Mopar Mechanic said to replace cps. Replaced with new Mopar unit. Won't run, no spark with cps plugged in. Runs with cps unplugged. Local certified mechanic can't find why it will not run with cps plugged in.

U have wrong cam gears my friend. Who ever put them in i bet put in an NGC set they fit on there but the windows or slots are not the same as the ones that were taken off. If u have the old ones take a look at them  there will be a difference on the right cam gear which the sensor is located on.

The cam gears are identical. Slots are in the same place as original. It was mentioned that the computer may need to be reflashed.

nope   Look at it from a simple fact. Did the car run b4 any work was done? IF yes then something was done to change that> The only thing that can be is timing,gears,wires. U checked out all then there is nothing left to do. Is the tone wheel part of the right cam gear the same as for as the slots are placed?? it is impossable for the car to run with only one sensor and plug in a new sensor and it not run. The chances that a cam sensor with as many miles as u had on it have the same probles as a brand new one???  that would be like 1 in a million. Count the tone wheel and slot locations on the old gear or better yet  put the old gear back on and see what happens. I will bet money that the new gear is for a different computer setup, I have seen this a few times where some one put a junk yard engine in and it was older or newer than the computer was setup for and would not start. Install the correct gear for that computer and it will pick up the sensor. The gear is setup like binary code if the right beeps are not there it will not startup.

The local mechanic hooked up some computerized analyzer (not a scan tool) to check all the sensors and signals. He said the CKS and the CPS  both have good signals and are perfectly in sync. The timing is perfect according to the computer. All sensors are working. He cannot check the computer programming. Also when the cps is plugged in and the key is turned on the plugs spark 4 times and when cranked there is no spark. I put the old cam gear back in, still does the same thing. All the slots, timing marks and gear teeth on both old and new are the same. It actually runs pretty good with the CPS unplugged but I really need to get it fixed. I will probably have it towed to the Chrysler dealer in the next city next week to have the computer checked. Thanks, I appreciate all your help. If you have any other ideas, I'd sure like to here them.

I doubt it. The computer software is the same with new and old software it just tweaks some settings or what ever needs to be adjusted. If the car ran b4 this work was done then something was changed or incorrectly installed after the fact. One other bit of info missing  why did u replace the chain and gears ne way?





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The timing chain broke as the car was being started. It had been making noise. The only other damage was a broken chain guide. I did a leak down test and compression test on all cylinders to be sure the valves were still good..

what was the promblem im have the same promblem

dave did you replace the chain because the car wouldn't start? heres marks from chrysler web site.moe