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Old 08-25-2013, 10:19 AM   #1
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W22 - 2004 - Lost Power

On our way back from a 2000 miles trip ,,,I lost power on my Infinity 2004 - 8.l Workhorse W22- Installed my code reader and got
the code P0001 - Fuel Volume - Regulator Control - Circuit/Open...
Let it sit for 15 minutes and it was ok ....but about 20 miles further the same problem occured....made it to my site.....But now I am just wondering how I can fix this problem...is it caused by bad fuel or it is my Fuel Filter ..(which I changed prior starting my trip) ...Will appreciate and .Be glad to received any comments on how to fix it!!!!!
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Old 08-25-2013, 10:49 AM   #2
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Voyageurs,

I would check the fuel filter first, even though you changed it before the beginning of your trip. The fuel pressure can be checked from the fitting that is located on the left side rear of the fuel rail on top of cylinder head. Fuel pressure should be between 55-62 PSI.
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Old 08-25-2013, 11:41 AM   #3
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Why did you replace the original?

How many miles are on your coach?

Where did you get your fuel filter?

Was it exactly like the original?

There's a problem getting the original ones and an aftermarket one for the original type is now on the market.
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Old 08-25-2013, 12:04 PM   #4
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Why - Had similar problems on our way back to Canada from Texas last April...

2004 infinity 37.5 feet ....30000 miles ,

I got the replacement Fuel Filter Kit from Brazel RV Performance ...

Yes a kit that replaced the original...
now I am wondering which Filter (only the filter since I have the fitting )
brand et repalcement number that I should use ....
any suggestions!!!
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Old 08-25-2013, 01:32 PM   #5
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Quote:
Originally Posted by Voyageurs View Post
On our way back from a 2000 miles trip ,,,I lost power on my Infinity 2004 - 8.l Workhorse W22- Installed my code reader and got
the code P0001 - Fuel Volume - Regulator Control - Circuit/Open...
This seems to be a very rare code according to internet searches on P0001. I found this at: http://www.justanswer.com/chevy/2n1h...cuit-open.html

It describes some issues which could trip that code.

Some reference indicate it to be a code that will be interpreted differently by differnt types of readers??

Suggest you get it re-read out by WH service.
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Old 08-25-2013, 03:36 PM   #6
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When you blow through the old filter does it appear to be clogged? I replaced my fuel filter for a power problem a couple years ago and the old filter wasn't clogged. A clogged filter will be difficult to blow through. It didn't help the problem.
I was getting P0131 codes every now and then, surging and occasional loss of power when the check engine light came on. P0131 says the O2 sensor was triggered.
Replaced the sensor...no help. Problem occurred climbing mountains 98% of the time.

The problem turned out to be the MAF sensor was dirty causing an incorrect amount of fuel and air to be mixed causing a lean condition which triggered the O2 error.
After cleaning the MAF sensor all the problems went away.

I'd suggest cleaning the MAF sensor and replacing your air filter. Those items need to be done in any case and it's not expensive.
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Old 08-25-2013, 11:49 PM   #7
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Since you already have the fuel filter adapter, you can buy a replacement fuel filter for $25 at advance Auto Parts. AC Delco GF652

http://shop.advanceautoparts.com/web...652&showTitle=

They make a special spray to clean the MAF sensor, $8.00 at Advance Auto Parts

Buy CRC Mass Air Flow Sensor Cleaner 05110 at Advance Auto Parts

I would do both for $33 before I take it to a shop for repair.

Actually, I would also install a new Air filter for an additional $12 at Oreillys auto parts # MGA3914 or an AC delco filter A917C or A1236C, while I had the air box open. The tuba could have sucked in water some time in the past and even though it is dry now the paper filter has changed properties.

http://www.oreillyauto.com/site/c/de...eyword=mga3914

Hopefully this will fix it for under $50, It can't hurt.
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Old 08-26-2013, 07:16 AM   #8
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Thanks for all the good info,,,will follows suggestions in the next few weeks ...before starting my trip back to Texas ....and will advise ....
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Old 08-26-2013, 10:59 AM   #9
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MAF Sensor Location on a W22 = 8.1

Quote:
Originally Posted by Arch Hoagland View Post
When you blow through the old filter does it appear to be clogged? I replaced my fuel filter for a power problem a couple years ago and the old filter wasn't clogged. A clogged filter will be difficult to blow through. It didn't help the problem.
I was getting P0131 codes every now and then, surging and occasional loss of power when the check engine light came on. P0131 says the O2 sensor was triggered.
Replaced the sensor...no help. Problem occurred climbing mountains 98% of the time.

The problem turned out to be the MAF sensor was dirty causing an incorrect amount of fuel and air to be mixed causing a lean condition which triggered the O2 error.
After cleaning the MAF sensor all the problems went away.

I'd suggest cleaning the MAF sensor and replacing your air filter. Those items need to be done in any case and it's not expensive.
Where is the MAF Sensor situated !!!!!!!
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Old 08-26-2013, 12:14 PM   #10
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Quote:
Originally Posted by Voyageurs View Post
Where is the MAF Sensor situated !!!!!!!
It is accessed from the front passenger side wheel well.

Some coaches have that area covered with an air flow matt of some kind that may need to be moved/detached to gain access. Be sure to re install that after completing the cleaning ! It is there to help direct engine cooling air from the fan.

To clean:

Remove the air filter cover from the body of the air filter housing.

Loosen the spiral clamp/s between the inlet air to the MAF and air filter cover.

Disconnect the harness plug attached to the MAF housing.

Loosen spiral clamp on the outlet side of the MAF.

Free up the MAF housing from the air intake.

DO NOT TOUCH OR DISTURB THE TINY THERMISTOR INSIDE THE MAF!

USE AN MAF SPRAY CLEANER TO CLEAN OFF ANY COATING OF DIRT ON THE INTERIOR OF THE HOUSING INCLUDING THE THERMISTOR.

Re assemble noting the location notches on the air intake pipes.

Re connect wire harness.
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Old 08-26-2013, 09:50 PM   #11
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M&EM covered it quite well.

I took mine to a shop and had the entire cleaning and new filter for a total of $133.

I don't know if it will solve your problem but needs to be done in any case.
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