Preventive maintenance on CPS etc
Preventive maintenance on CPS etc
Hi all,
I recently bought a 2007 roadster, with 55k miles. Last oil change was done 2 years ago and the FSS is showing -2800 kms. I will tackle this during the next weekend.
Reading the posts on the common Crossfire problems, I stumbled upon common CPS, camshaft PS and RCM malfunction. I didn't get into these for the moment, but I wonder whether it was worth changing the CPS and camshaft PS as a preventive maintenance and buying only Bosch parts (quite easy to find here in Europe).
It seems the best bet is to change them and keep the old ones in the trunk. Need also to check RCM contacts and relays ?
What's your advice ?
Thanks in advance.
I recently bought a 2007 roadster, with 55k miles. Last oil change was done 2 years ago and the FSS is showing -2800 kms. I will tackle this during the next weekend.
Reading the posts on the common Crossfire problems, I stumbled upon common CPS, camshaft PS and RCM malfunction. I didn't get into these for the moment, but I wonder whether it was worth changing the CPS and camshaft PS as a preventive maintenance and buying only Bosch parts (quite easy to find here in Europe).
It seems the best bet is to change them and keep the old ones in the trunk. Need also to check RCM contacts and relays ?
What's your advice ?
Thanks in advance.
Re: Preventive maintenance on CPS etc
Carry spares of these parts and the tools required to install them.
Solder the weak joints as shown in the RCM repair thread just in case they are poor joints and look at the contacts on the relays for signs of arcing, replace the solenoids if the contacts are burnt.
Re: Preventive maintenance on CPS etc
Crankshaft Position Sensor but did get the code for the Camshaft Position Sensor. Changed it out, Easy, and all is good now.
Bill T.
Last edited by Billto; 09-13-2017 at 05:00 PM.
Re: Preventive maintenance on CPS etc
I do not have a wealth of knowledge, but I do remember where to get the info when I need it and remember most of it. I think.
Crankshaft PS removal. CLICK
Cam Shaft PS removal. CLICK
Last edited by onehundred80; 09-13-2017 at 07:03 PM.
Re: Preventive maintenance on CPS etc
Hi all,
Today I changed the CPS (Camshaft). I noticed the Bosch part is a little different from the original one (old one is only plastic, new one some metal is visible) but it fits perfectly. It was a little bit difficult to remove the Torx bolt, and I notice some old loctite (appeared to me a some old loctite) but not sure, as it is not noticed in the workshop manual. Wroth putting some?
Today I changed the CPS (Camshaft). I noticed the Bosch part is a little different from the original one (old one is only plastic, new one some metal is visible) but it fits perfectly. It was a little bit difficult to remove the Torx bolt, and I notice some old loctite (appeared to me a some old loctite) but not sure, as it is not noticed in the workshop manual. Wroth putting some?
Re: Preventive maintenance on CPS etc
Depends on the grade of Loctite you use, this is a small screw and it may be a devil to get out if you use a strong Loctite grade.
I see no reason to use it anyway as long as it is tightened to spec.
I see no reason to use it anyway as long as it is tightened to spec.
Re: Preventive maintenance on CPS etc
Agree with onehundred80.
I just come back from a road test, and something weird is happening now, didn't notice that before.
When the car is cold, the engine is shaking a little bit with a low idle. And when it's hot, sometimes, when the stick is on neutral, engine is going up to 2000rpm with no reason
Don't know what's going on. Wrong part?
Here is the brand new box (Bosch P/N seems OK) and the old part.
On the old one, some numbers:
0 232 103 050
07-02-19
A 004 153
96 28
Any advice? Swap back the old one? Does the ECU need some time to adjust its settings?
I'm a little bit puzzled...
I just come back from a road test, and something weird is happening now, didn't notice that before.
When the car is cold, the engine is shaking a little bit with a low idle. And when it's hot, sometimes, when the stick is on neutral, engine is going up to 2000rpm with no reason
Don't know what's going on. Wrong part?
Here is the brand new box (Bosch P/N seems OK) and the old part.
On the old one, some numbers:
0 232 103 050
07-02-19
A 004 153
96 28
Any advice? Swap back the old one? Does the ECU need some time to adjust its settings?
I'm a little bit puzzled...
Re: Preventive maintenance on CPS etc
I put back the old one as the reference was not the same.
I did a little research here:
https://www.bosch-automotive-catalog...uct/0232103037
https://www.bosch-automotive-catalog...uct/0232103050
Both parts are not exactly the same:
The line labelled Type Formula is not the same. Don't know this stands for, but not identical. Mine (050) has a replacement part.
Hope I didn't harm the engine...
I did a little research here:
https://www.bosch-automotive-catalog...uct/0232103037
https://www.bosch-automotive-catalog...uct/0232103050
Both parts are not exactly the same:
The line labelled Type Formula is not the same. Don't know this stands for, but not identical. Mine (050) has a replacement part.
Hope I didn't harm the engine...
Re: Preventive maintenance on CPS etc
Way back I agreed that 037 was the correct part. Why confuse everything with over thinking it.
So 037 or its replacement if there is one now.
Maybe the one you took out was not the correct one.
So 037 or its replacement if there is one now.
Maybe the one you took out was not the correct one.
Last edited by onehundred80; 10-09-2017 at 05:24 PM.
Re: Preventive maintenance on CPS etc
One thing is sure: I put back the 050 one and it runs smoothly. So, it's either coming from the 037 brand new part itself, or this is not the right one for a 2007 car. I have the full history if the car, and that part hasn't been changed, at least on all the invoices I've got.
It's rather a mystery to me why the Bosch site gives the 114, and why the 037 housing is different from 050
Interestingly, it seems PG-3-8 (050) is more technologically advanced than PG-3-5 (037) and with a higher precision:
Re: Preventive maintenance on CPS etc
What part numbers are you talking about? It would be interesting to know.