So do you think those chewed up wires causing the MAP sensor not to function may be the reason why i failed emissions inspection and triggered P0410 code?

 

That is the Camshaft Position Sensor, NOT the MAP sensor.

( there is NO MAP sensor, we have a combined MAF/IAT sensor )

 

How the hell can the car start and run without the Cam sensor??????

 

I was thinking the same thing.

BUT WAIT !!!
This is not going to be easy to do, as I have to admit that I am ALL WRONG !

The picture's above is of a :
MERCEDES W204 W220 W251 W211 W215 W906 BOOST PRESSURE MAP SENSOR A0051535028

So, there is indeed a MAP sensor. Whooda knew ?

( I coulda swore the chewed wires were to the Camshaft Sensor -
I caught my self that time 180 - you don't have to correct me )

 

I stared at this light for months on end after finding out what it was. I finally disconnected it from the car took the little pump over to the air compressor and shot air through both ends of it. 4 months later still no CEL (knock on wood). Thought I would share since many people are having issues, just something to try!

 

thanks guys
have a 2004 with 100000 miles , runs great but had the light issue always on
checked the code and and found out it was related to the injector pump
checked the valve - good, pump runs as needed
took apart the relay box and contact was burnt and also solder cracked
re-solder cleaned contacts and have not had a issue yet

thanks again

Paul

 

Wait guys, so where is this relay I need to clean the contacts on? Or the secondary air injection pump? Sorry if it's silly to ask, how do I identify this?

 

You identify it by disconnecting the negative battery terminal, then remove the RCM, then the RCM plastic cover. It will be the one with the black contacts. ( The RCM is the one in the plastic box by the battery that is closest to the engine with all the fuses on top )
Don't worry about mixing up the connectors, they are all unique.
Cleaning the contacts is a temporary solution, you should send it to tighed1 ( D.J. ) and have him replace the relay.
Cost you about $20. ( send him a PM )

 

If mailbox is full, email me at

tighed1 @ hotmail . com

Yep. $25 gets you a NEW relay, Mystery No Start repair AND the Me So Horny mod.

 

The relay control module is in a sealed black box in the rear of the engine bay on the passenger side. Remove the wiring harness connectors and pull the module out of the car.

I pried the module open with some small screwdrivers to get the circuit board out. Once you pull it out of the casing you will see five (if i remember correctly) relays soldered to the board. All I did was re-solder the contacts on the relays and then put everything back together.

Be careful prying the box open. You don't want to damage the circuit board. If you're not comfortable doing all this yourself get tighed1 to do it. Its worth the $20 instead of the $200+ you'll spend on a new relay control module.

 

Click to enlarge.. relays are labeled ..

 

I had the same issue - P0410 kept creeping up on my dashboard and I was finally tired of the orange on my dashboard so looked into it. Seemed like connectors and secondary air system seemed fine so everything pointed to the control relay.
I finally got around to finding a computer repair show and asked the gentleman if he could solder the broken joints (which really looked bad and sooner or later would have resulted in the mystery no start) and he did that within minutes for only $20. He looked at all the joints but everything was fine except for the little row on the lower right hand side as shown in the "Mystery no start" sticky.
So, went home and plugged the relay back into my car and was excited to see the Check Engine light disappear! No more orange for this guy
Thanks to this forum this problem was fixed quick and easy!

 

Don't count your chickens yet ! The P0410 is usually caused by burnt contacts on the air pump relay, not bad solder joints on the board. Send it to tighed1 and have him replace the relay for another $20.

 

Agree. It's the relay that causes the 410 code.

 

I am not trying to disagree with you but I just had the RCM fixed and before I always had the check engine light on the dashboard. As soon as the fixed board was plugged in the P0410 went away when I started the car and has not come back ever since. Also, I can hear the secondary air pump running now which has not happened before.
Not sure why that is the case but I would think it is connected to the fixed joints???

 

Fixing the RCM as you had done does not repair the relay inside it that operates the air pump. This relay has problems with sticky contacts.

 

I have looked all over the forum but can't seem to find a thread on THAT fix. Can you provide a link please?
I am still so surprised that after the solder fix the Check engine light went right away and has not come back so far. Maybe just taking it out and putting it back in cause the relay on the back to fix itself (I'm joking of course).

 

https://www.crossfireforum.org/forum...ement-rcm.html

 

Alright, I will pull it out again once this Florida rain lets up and check it out. Still weird that the engine light went back and has not come back yet.

 

Nick. Email me at my user name (tighed1) @ Hotmail. com
I can replace your relay. Just received a new batch of relays!
Lots of satisfied owners!
DJ