Hi All,

I just finished the solder repair on my RCM hoping that would fix my two engine codes P0140 & P0341 plus the "mystery no start". The P0140 showed up a couple days of purchasing the car last Nov. Since I work from home the Crossfire hasn't seen a lot of road time yet. The secondary air pump sounds normal upon startup and then shuts off after about 60 seconds which to my understanding is S.O.P. I had the Crossfire out last weekend and it was about 90 degrees outside. After stopping for some shopping it took three attempts to get her started. The first two attempts the engine would crank but not turn over. Once it was running after the third attempt, the CEL was on throwing the new P0341 code.

The RCM fix went just fine and I thought I had it licked. I got the RCM back in and all the engine codes were cleared. Went out for a test drive, got back home let it sit for a little bit. Went out to restart it and it didn't start on the first turn but it started on the second turn and now the check engine light is back on throwing P0341.

The previous owner had the crankshaft sensor replaced September 2014 but he had to have a new sensor warranty replaced last August 2015. He also had the camshaft sensor replaced last August 2015, so now it's already showing that it is bad with the P0341 code.

I was really hoping it wasn't the sensors going bad and it was just the RCM issue. Does anyone else have any ideas or do I just need to replace the camshaft sensor?

The dealership said the part is still under warranty but it would be $97.00 for them to run their diagnostics to make sure that is the issue. The last thing I want to do is to take it in to them since they have already replaced the crankshaft sensor twice and the camshaft sensor last August.

Here's the details on the prior service. Any help or suggestions would really be appreciated!

Thank!
Craig

 

Try just disconnecting the CPS plug and using some contact cleaner on it.
You could also use some tiny needle nose and put just a SLIGHT twist on the 2 pins in the CPS.

 

The first two attempts the engine would crank but not turn over

The starter "cranks" or "turns over" the engine, so you statement goes no where. I THINK you mean that it does crank/turn over, but wont' actually start and run.

My advice:

1) Stop taking the car to the damn dealer - STOP IT.
2) Order a Camshaft Sensor (I'd order a Crank position sensor as well becuase I ALWAYS carry one)
3) Sounds to me like you MIGHT, might have an O2 sensor bad, but I'd hold off on that for now.
4) Parts are hard with these cars, buying sensors, etc at Autozone or where ever seems to cause issues, I've linked you to where I get my sensors below.
5) Read George's post above.

Here is your Cam Sensor:
https://www.germanautosupply.com/sto...ensor-405.html

Here is your Crank Sensor:
https://www.germanautosupply.com/sto...sensor-96.html

It really sounds to me like the Cam sensor is acting up. The O2 code should not be ignored, but I'm not convinced yet just what that is all about.

 

This "they have already replaced" the sensors twice makes me wonder where they are getting their parts. You have a code telling you that the Cam sensor is acting up. Other than George's advice, I'd order one from German Auto Supply TODAY. I think this is a case of people making things WAY harder than they should be, due to using suspect parts.

 

Thanks for the tips and links, I really appreciate it! I should have a chance to look at the contacts tomorrow.

To be clear on advice point #1, I have never taken the Crossfire to any dealer, and hope I never have to! This receipt is from work the previous owner had the dealer do in August 2015. The receipts just happen to be in the glove box when I purchased the car in Nov 2015.

I'll post an update tomorrow. It's a real bummer I'm having trouble with the Crossfire. Driving it is one of the only things I can do that helps take my mind off of this little guy, The Immobilizer"

 

That's what I thought too. And I'm guessing it led the former owners to sell.
I will definitely buy the both sensors and install myself. Did you check out what the dealer charged the former owner for the sensor...$373.00!

Thanks to the knowledge everyone here as gathered over the last 12 years I hope to keep my car as far away from the dealers as possible. I'm the very same way with my Harley Roadking. No dealership service ever!

 

Ordered both sensors. Thanks again for the links!!!

 

I still wonder about that O2 sensor. But one thing at a time...

 

Both sensors showed up - (thanks again for the links)
and I have my E8 socket ready.

I would rate my car wrench skills at average at best (on a good day). Any "gotchas" to look out for?

I read in one thread the plug can be tricky to get pulled off. Any tips?

I'll use some contact cleaner on the contacts. Plus take a look at the two pins in the plug.

I'll be extra careful starting the screw (by hand) once I get the camshaft sensor replaced as to not mess up the threads.

Any other advice or encouraging words before I pop the hood tomorrow?

Thanks!

 

The CPS can be removed with the cable still attached, the plug is easier to unlatch this way. Be careful not to drop the little bolt, some use some method to get the bolt to stay jammed in the socket.

 

Good tip, thanks 180!

 

The CPS (camshaft) replacement appears to be a success. 180's advice to remove the sensor first and then unplug made the job much easier. I did spray some contact cleaner on the three contacts inside the plug. The car started right up and I am showing no engine codes.

I went for a 20 mile test drive and after I got home let the car sit for 30 minutes. After that it started right up and since then I've started it a couple more times.

I did notice the original CPS was a MB branded Bosch sensor.

I did the RCM solder fix last week and now the new camshaft sensor replacement.
I did order the crankshaft sensor as well just to have one at the ready. I'm going to order another camshaft sensor to keep in my tool box.

Thanks to the forum and everyone involved for saving me some cash!
Plus a boost for my confidence in my car wrenching skills.

 

Love to hear these success stories, although I wasn't much help on this one.
My guess was the crankshaft sensor, not the camshaft sensor since it rarely goes bad.