P0106 on 2000 and later MPV
 

P0106 in the shop manual means "BARO circuit performance problem".
The description of whythis code isset is listed as this:

PCM monitors differences between intake manifold vacuum and atmospheric pressure at idle, which BARO sensor detects by switching EGR boost sensor solenoid. If difference is below 6.43 kPa {48.2 mmHg, 1.90 inHg}, PCM determines that there is a BARO sensor performance problem.

In normal english this means this : The Baro sensor is what the PCM uses to detect the folllowing: What atmospheric pressure is, What intake manifold vacuum is, and What change in manifold vacuum occurs when the EGR valve is opened.
We know that there is a huge difference is pressure between atmospheric pressureoutside the manifold and the 23" or so of vacuum inside the intake manifold at idle and yet when the PCM checked for this it found very little pressure difference. Because of this it thinks the BARO sensor may be faulty.

To start finding out what is really wrong, refer to the first diagram below and locate the EGR boost sensor, EGR boost sensor solenoid valve, and finally the EGR valve on the engine. The boost sensor is located on the top of the air cleaner housing with a single vaccum line to it and a three wire connector. Follow that vacuum line and you will find the boost sensor solenoid valve. There is another vacuum line connected to the solenoid valve. If you follow this other vacuum line you will find the EGR valve as it connects right up to it.
#1 First thing to do is start the engine and let it idle and thenmake sure that all of the vacuum lines are connected. Vacuum line at EGR valve often gets knocked off if previous work has been done in that area. #2 If all vacuum lines are connected ok then remove the one from the EGR valve and make sure you have good vaccum at the exposed port. If no vacuum then it is clogged due to proximity to EGR valve and can usually be easily cleaned out with a small drill bit or nail.
#3 If vaccum is ok at the port then reinstall vaccum line and remove the other end of this line from the solenoid valve and check for vacuum. If no vacuum then line is clogged so put on another one.
#4 If there is vaccum to the solenoid valvethen reinstall the line onto the solenoid valve and remove the vaccum line from the EGR boost sensor. You should not have any vaccum from the removed line. If you do then unplug the electrical connector from the solenoid valve checked at #3. If vaccum is now gone then you have a shorted harness problemor faulty PCM. If vacuum is still present to the boost sensor then the solenoid valve is stuck open and needs replaced.
#5 If there is in fact no vacuum to the removed line at the boost sensor then use a couple of readily available jumper wires, unplug the two wire connector at the solenoid valve and apply power and ground to the solenoid valve. You should now have vacuum at the remove line at the boost sensor. If you did get vaccum thru then you have a faulty boost sensor. If you did not get vaccum then recheck your jumper wire connections and if they are ok ( a good solenoid will make a sharp click sound when power and ground is applied), then the solenoid valve is stuck closed and needs replaced.

That should about cover what you can do about the P0106 code ducks98. Let me know if have any confusion of questions as it is a long post and quite a few steps.:D



[IMG]local://upfiles/1377/4CEDD1DA4BA54955AFC7FAD0417A1EE9.gif[/IMG]EGR system diagram

[IMG]local://upfiles/1377/A54E5B1344FC42028A65A38FE2051EBF.gif[/IMG] This is what the solenoid valve will look like and where to apply power ( B+ ) and ground (GND).

[IMG]local://upfiles/1377/34FD25B393D34340994C34612AAE0C2E.jpg[/IMG]Here is the EGR boost sensor in foreground and solenoid valve in background.

[IMG]local://upfiles/1377/D156CF558D154024A7E72B8B6A50FFE0.jpg[/IMG] This is the EGR valve.

RE: P0106 on 2000 and later MPV
 

I have the same problem except-after cleaning EGR vacuumport. as per #2 instruction, still no vacuum from it. Loosened EGRfrom engine to be sure port was clear (noted that the port angles up EGR vacuum area).Port was clear.Flushed thru port with cleanser. Attenpted to start engine to ensure manifold wasn't blocked, The engine would startfor a moment and then die, as expected with a vacuum pull thru the flange.Replaced EGR, started engine and still no vacuum thru the port.I tried to blow or suck thru the port, no luck. Is this indicitive of a bad EGR or some othe componant?

How can I see pictures?

p0106 code
 

hello, love your answer but i cannot get the vacum line diagram that you have linked.the second vacum line that goes to the egr valve is not hooked up and i cant see where it goes on the egr valve on my 2000 mpv. can ya help? thanks stevep

An excellent write-up thanks! Using your step by step I was able to determine there was no vacuum at the EGR valve hose port tube. I did use a small drill bit and carb cleaner to clean the carbon from the tube but still no vacuum. Reading other posts I saw mention of the machined channel in the intake manifold behind the throttle body gasket being filled with carbon. I removed the throttle body and that was certainly the case on my MPV. (2000 with 188,000 on the clock) Once you remove the throttle body and gasket you will see a semi-circular channel about 1/8 inches wide and deep cut into the machined gasket surface beneath the circular air intake portion with three channels opening into the intake air flow and a port on the upper right end which connects via a passage to the EGR valve output. Mine was completely clogged with dirt and carbon. I used a small screwdriver and carb cleaner to clean it up. Don’t forget to check the small hidden port on the upper right end of the channel which goes back onto the manifold and spray it out. That did the trick. I have read of people going to the trouble and expense of replacing the EGR valve only to have no improvement because this was the actual problem.

P2262
 

[Hi it seems you know your sruff , question . Ive had new turbo kit head gasket lifters rickers intake clean etc recent 2 sensors plus i fotted exhaust gas sensor. If when boosted I'm still occasionally getting p2262 code what is it likeky to be ?

Im happy cyeckimg hoses etc and i do get occasional buzz sound i had wondered if it were the turbo solenoid itself. Amy suggestions im grateful thank you loved reasing that ill be checking those regardless


QUOTE=babyhuey;37370]P0106 in the shop manual means "BARO circuit performance problem".
The description of whythis code isset is listed as this:

PCM monitors differences between intake manifold vacuum and atmospheric pressure at idle, which BARO sensor detects by switching EGR boost sensor solenoid. If difference is below 6.43 kPa {48.2 mmHg, 1.90 inHg}, PCM determines that there is a BARO sensor performance problem.

In normal english this means this : The Baro sensor is what the PCM uses to detect the folllowing: What atmospheric pressure is, What intake manifold vacuum is, and What change in manifold vacuum occurs when the EGR valve is opened.
We know that there is a huge difference is pressure between atmospheric pressureoutside the manifold and the 23" or so of vacuum inside the intake manifold at idle and yet when the PCM checked for this it found very little pressure difference. Because of this it thinks the BARO sensor may be faulty.

To start finding out what is really wrong, refer to the first diagram below and locate the EGR boost sensor, EGR boost sensor solenoid valve, and finally the EGR valve on the engine. The boost sensor is located on the top of the air cleaner housing with a single vaccum line to it and a three wire connector. Follow that vacuum line and you will find the boost sensor solenoid valve. There is another vacuum line connected to the solenoid valve. If you follow this other vacuum line you will find the EGR valve as it connects right up to it.
#1 First thing to do is start the engine and let it idle and thenmake sure that all of the vacuum lines are connected. Vacuum line at EGR valve often gets knocked off if previous work has been done in that area. #2 If all vacuum lines are connected ok then remove the one from the EGR valve and make sure you have good vaccum at the exposed port. If no vacuum then it is clogged due to proximity to EGR valve and can usually be easily cleaned out with a small drill bit or nail.
#3 If vaccum is ok at the port then reinstall vaccum line and remove the other end of this line from the solenoid valve and check for vacuum. If no vacuum then line is clogged so put on another one.
#4 If there is vaccum to the solenoid valvethen reinstall the line onto the solenoid valve and remove the vaccum line from the EGR boost sensor. You should not have any vaccum from the removed line. If you do then unplug the electrical connector from the solenoid valve checked at #3. If vaccum is now gone then you have a shorted harness problemor faulty PCM. If vacuum is still present to the boost sensor then the solenoid valve is stuck open and needs replaced.
#5 If there is in fact no vacuum to the removed line at the boost sensor then use a couple of readily available jumper wires, unplug the two wire connector at the solenoid valve and apply power and ground to the solenoid valve. You should now have vacuum at the remove line at the boost sensor. If you did get vaccum thru then you have a faulty boost sensor. If you did not get vaccum then recheck your jumper wire connections and if they are ok ( a good solenoid will make a sharp click sound when power and ground is applied), then the solenoid valve is stuck closed and needs replaced.

That should about cover what you can do about the P0106 code ducks98. Let me know if have any confusion of questions as it is a long post and quite a few steps.:D



[img]local://upfiles/1377/4CEDD1DA4BA54955AFC7FAD0417A1EE9.gif[/img]EGR system diagram

[img]local://upfiles/1377/A54E5B1344FC42028A65A38FE2051EBF.gif[/img] This is what the solenoid valve will look like and where to apply power ( B+ ) and ground (GND).

[img]local://upfiles/1377/34FD25B393D34340994C34612AAE0C2E.jpg[/img]Here is the EGR boost sensor in foreground and solenoid valve in background.

Hi it seems you know your sruff , question . Ive had new turbo kit head gasket lifters rickers intake clean etc recent 2 sensors plus i fotted exhaust gas sensor. If when boosted I'm still occasionally getting p2262 code what is it likeky to be ?

Im happy cyeckimg hoses etc and i do get occasional buzz sound i had wondered if it were the turbo solenoid itself. Amy suggestions im grateful thank you loved reasing that ill be checking those regardless

Thanks
[img]local://upfiles/1377/D156CF558D154024A7E72B8B6A50FFE0.jpg[/img] This is the EGR valve.[/QUOTE]