Ok so long story short, I replaced my crankshaft position sensor about 2 months ago after having the old one go bad.

It's run fine for two months, but just the other day the stalling happened twice in one day. I called the dealer and the Crossfire specialist told me it sounds like the new one isn't good (fyi it's a NAPA replacement). Now, the part has a lifetime warranty on it, but if I send in the part in I'll have to get a new one while it's gone. And if they find it not faulty, I'll be out a good $100.

So, is there any way I, or someone with special equipment, can test the sensor?

Also, it did not throw the code for the CPS the first time, and it isn't doing it this time. Only code it throws is the P0410 (which would not have such an effect on the engine).

 

[quote=RapidFire]
So, is there any way I, or someone with special equipment, can test the sensor?quote]
Yes you can check them, I'll let you know how but it is in the shop manual.
You will need a digital multi-meter than can read small resistance values, from 5 - 100 Ohms and as low as 1 volt.
The way to check this part starts on page 9-335 of the 2004 shop manual.
Good luck, I have done one on a '93 Concorde and found it was NFG. The dealers service rep was impressed, but they just change parts until they get lucky from what I have seen.

 

I deal with NAPA on a daily basis. Have them order you a new one and when it comes in, swap it out. Your store will send it back and whether good or bad, you won't hear anything about it.

Since the CPS sometimes has heat or intermittent issues, checking it off the car is not very accurate unless it completely fails. On other cars, using an OBD reader, (haven't tried it on the Crossfire) you can check the engine rpm when cranking. If it shows no rpms while cranking, then you know it is bad.

Also there is cam sensor you need to check for the same symptoms.

James

 

A resistance check may or may not let ya know if the CPS is bad. Problem is that when the CPS gets hot it may show a different reading than when it is cool.
That is why you can drive your car, have it die due to the CPS being bad and then wait a while and the car starts just fine because the CPS has had a chance to cool down.

It's a $40 part. Replace it and see if the symptoms go away.

 

Thanks for the replies everyone. I'll give those a try, and have a talk with someone at my NAPA store.

 

Quick update:

The part decided to give up on me and leave me stalled at one of the busiest intersections in the city (and also a half a mile from my job I was going to). Luckily a cop showed up after a minute of people honking and going around me, helping me push it into the median. Had it towed back to my house, where it started right up.

Needless to say, NAPA has a new part on the way for me.

 

well i guess my xfire also has the symptoms of a bad shaft position censor. i guess its better to replace the part than testing it and having varied results. thanks anyway for the help.