Check Engine Light - Please Help!
Thread Starter
Super Member
Joined: Dec 2008
Posts: 574
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From: NorCal
W211,E90,E66,E39,E38,NSX,Z32-TT
Check Engine Light - Please Help!
Hi guys!
I replaced the valve cover gaskets on both banks of the cylinders since they were leaking. After I put everything back together, I got very rough idling with an illuminated check engine light.
I pulled the codes and got the following:
P2007-008 B28 Pressure Sensor - Signal Implausible
P20D4 The load circuit is active
P202B-002 Idle Speed Control Implausible
- Short circuit to ground or open circuit
P20A2 Idle Speed Control Implausible
- Check system for unmetered air
I'm at a lost. What could this be? I checked all the lines and fittings and everything is fine.
I replaced the valve cover gaskets on both banks of the cylinders since they were leaking. After I put everything back together, I got very rough idling with an illuminated check engine light.
I pulled the codes and got the following:
P2007-008 B28 Pressure Sensor - Signal Implausible
P20D4 The load circuit is active
P202B-002 Idle Speed Control Implausible
- Short circuit to ground or open circuit
P20A2 Idle Speed Control Implausible
- Check system for unmetered air
I'm at a lost. What could this be? I checked all the lines and fittings and everything is fine.
Super Member
Joined: Nov 2004
Posts: 992
Likes: 11
From: Illinois
GL550, C55, 335i Coupe, vintage Mustang
The first 2 codes, i have a feeling were in the ME before. The last 2 cause a check engine light for a vaccum leak. Also, these can be caused by an oil fill cap being left loose or off. Check the black rubber breather hoses from the valve covers to the throttle body for cracking or installation errors(not reconnected).
Nick
Nick
MBWorld Fanatic!
Joined: Oct 2006
Posts: 3,642
Likes: 13
From: Caribbean/Florida/Colorado
E-ZGO 53hp., 1999 E 430 sport, 2004 E 55, 2008 Tahoe LTZ on 24"s
The first 2 codes, i have a feeling were in the ME before. The last 2 cause a check engine light for a vaccum leak. Also, these can be caused by an oil fill cap being left loose or off. Check the black rubber breather hoses from the valve covers to the throttle body for cracking or installation errors(not reconnected).
Nick
Nick
How did you remove the plug wires? If you did not use the 17mm wrench method some wires could have been damaged. Recheck the coil wires too.
MBWorld Fanatic!
Joined: May 2004
Posts: 1,654
Likes: 1
From: orange county, ca
2006 E55
I've had the pressure sensor problem before as well. I took it to the dealer, and they blamed the renntech mods, so they wouldnt fix it. They said the signal was implausable meaning there was more pressure than normal, which is the crank pulley's fault.
Renntech claims its a faulty sensor, so who knows. The code was erased and I paid $150 for the diagnosis since it was deemed a non warranty issue.
I just a check engine again today, and I hooked it up to the auto inginuity scanner, and it showed something similar. I forgot the code, but it said pressure sensor, so I assumed it was the same. I just cleared it and left it be since it doesnt seem to be affecting anything.
Renntech claims its a faulty sensor, so who knows. The code was erased and I paid $150 for the diagnosis since it was deemed a non warranty issue.
I just a check engine again today, and I hooked it up to the auto inginuity scanner, and it showed something similar. I forgot the code, but it said pressure sensor, so I assumed it was the same. I just cleared it and left it be since it doesnt seem to be affecting anything.
Last edited by psk145; Feb 14, 2009 at 11:35 PM.
Newbie
Joined: Dec 2015
Posts: 4
Likes: 0
03 cl55amg
i have those same codes after changing
Hi guys!
I replaced the valve cover gaskets on both banks of the cylinders since they were leaking. After I put everything back together, I got very rough idling with an illuminated check engine light.
I pulled the codes and got the following:
P2007-008 B28 Pressure Sensor - Signal Implausible
P20D4 The load circuit is active
P202B-002 Idle Speed Control Implausible
- Short circuit to ground or open circuit
P20A2 Idle Speed Control Implausible
- Check system for unmetered air
I'm at a lost. What could this be? I checked all the lines and fittings and everything is fine.
I replaced the valve cover gaskets on both banks of the cylinders since they were leaking. After I put everything back together, I got very rough idling with an illuminated check engine light.
I pulled the codes and got the following:
P2007-008 B28 Pressure Sensor - Signal Implausible
P20D4 The load circuit is active
P202B-002 Idle Speed Control Implausible
- Short circuit to ground or open circuit
P20A2 Idle Speed Control Implausible
- Check system for unmetered air
I'm at a lost. What could this be? I checked all the lines and fittings and everything is fine.
Newbie
Joined: Dec 2015
Posts: 4
Likes: 0
03 cl55amg
i have those same codes after changing
well to prevail i just found the little metal tube which was tucked under cooler on drivers side its attached to a little rubber fitting i just removed the tube which is bolted down to the upper valve cover and with a little mirror inserted tube back in rubber fitting and bolted it back down to valve cover
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