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05-22-2015, 11:45 AM
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#1
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Member
Fleetwood Owners Club iRV2 No Limits Club
Join Date: Apr 2014
Posts: 64
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Troubleshooting the Chevy P-30 Chassis & Engine
I have a 1992 Fleetwood Pace Arrow motor home, model 37J. I know this was built off the Chevy P-30 chassis, and has a 454 Chevy engine. Finding information for troubleshooting and repairs is becoming a very frustrating challenge!
I know that there is a plug under the dash for plugging in a diagnostic computer. Does anyone know if this might be one of those, consumer available type, small hand-held computers one can purchase, or is it one of those large, 'dealer only' type computers?
Thanks!
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05-22-2015, 03:08 PM
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#2
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Senior Member
Monaco Owners Club Freightliner Owners Club
Join Date: Mar 2015
Posts: 169
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p 30
I had a 1991 p chassis under a ultra star it had a OBD 1 connector under the dash you can buy them but they must support OBD 1 they are hard to find i got one at auto zone it reads OBD 1 and 2 and some imports about 250.00 I will warn you that OBD1 doesnt provide alot of info like the OBD2 does.
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lead follow or get out of the WAY
1998 HR Endeavor 5.9 Cummins
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05-22-2015, 03:36 PM
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#3
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Senior Member
Tiffin Owners Club
Join Date: Apr 2014
Posts: 256
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I found a OBD II wifi plug in for my 2002. I downloaded an ap with my smart phone and can not only read codes, I can watch fuel milage, rpm, and many other data points in real time. I used it to read knock sensor code on motorhome.
The OBD II reader supports all OBD II protocols and I paid about $40 for it. I paid $5 for smart phone ap.
I've also used it on my Chrysler SUV and Ford Taurus for reading Mass Air Flow sensor engine code and replaced MAF sensor myself.
Best device I've bought in a long time.
Sent from my iPhone using iRV2 - RV Forum
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ROAquaman
2002 Tiffin Allegro; P32 Workhorse; Chevy 8.1 Vortec
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05-22-2015, 03:38 PM
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#4
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Senior Member
Join Date: Aug 2008
Location: Georgia
Posts: 8,638
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I have a cp9001 actron look it up and if it will work pm me.
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2007 Fleetwood Revolution LE 40V
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05-22-2015, 04:14 PM
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#5
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Senior Member
Join Date: Mar 2015
Location: Newcastle, WA
Posts: 288
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I once diagnosed a failed transmission sensor using the OBDI connector and a volt meter. The service manual provided the voltage range and the pinout on the OBDI connector. Took it on a test drive and watched the voltage, it showed very low voltage, well out of range. Replaced the sensor and my shifting problem was fixed. Volt/Ohm meters can be very handy.
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Kevin n Chriss
2015 Newmar 3103 Bay Star -The Pay Car-
1993 Fleetwood 28T Bounder -The Flounder-
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05-23-2015, 09:15 AM
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#6
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Member
Fleetwood Owners Club iRV2 No Limits Club
Join Date: Apr 2014
Posts: 64
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I really appreciate this information! This is what I'm looking for.
But I'm a bit confused... First thing I did was 'google', OBD II, and received a few hits on it. Advertisements from amazon, Harbor Freight, Auto Zone, ect... And in the $40 range.
What I had read on one if them was, "Read and clear trouble codes in all OBDII compliant vehicles from 1996 and newer."
I have a 1992 model year. So do I need to find an OBD I or OBD II? Am I looking at the right part? One reply mentioned it costing $250.
My current problem is a temperature gauge that's not working. I did find out that there are 'two' sensors in this, one on the drivers side of the engine, the other on a crossover pipe.
I have the locations of the sensors, I even have part numbers. But I don't want to spend about $50 to replace both of them, then possibly find out that wasn't the problem.
And of course I want a diagnostic tool for any problems that might develop in the future.
Getting a plug with a WiFi option would be great, just a code reader would be fine with me as well. Naturally, whatever might be cheaper would be of more interest to me.
I'm on a fixed disability income, so funds are very limited. Another reason I don't want to just replace both sensors, and 'hope' that solves my issue. I don't want to replace something that might be working as it should.
Again, I really appreciate the replies, but I need something 'a bit' more specific.
Like maybe a brand name, part or model number of the analyzer/code reader. Once I have that, I can look around the Internet to find it.
Can anyone get that information for me?
I don't want to buy the wrong thing for this particular model year, or something that won't help me fix this current problem.
Thanks!
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05-23-2015, 03:31 PM
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#7
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Senior Member
Workhorse Chassis Owner
Join Date: Jun 2003
Location: Palisade CO
Posts: 3,588
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It is an ODB 1 NOT a ODB 2.
My 95 P30 chassis had one. On it there were two pins/holes that could be shorted and the engine light would flash the codes. The bad news is I don't remember which pins and I also don't remember where I found the info on how to do it.
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Clay WA5NMR - Ex Snowbird - 1 year, Ex Full timer for 11 years - 2004 Winnebago Sightseer 35N Workhorse chassis. Honda Accord toad.
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05-23-2015, 04:04 PM
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#8
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: Apr 2015
Location: Western WI
Posts: 688
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You need the 1. My 93 Kountry Star had issues (P30), I took to the Chevy medium truck tacitly, they had to order the adapter for there machine to read the old codes. Sometimes the tech is too far out of date for me, so we upgraded to the 2001 we have now.
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2001 Itasca Horizon 36LD Cat
Retired Air Force, One lovely Angel , 2 Cats and three birds.
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05-23-2015, 08:18 PM
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#9
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Senior Member
Tiffin Owners Club Workhorse Chassis Owner
Join Date: Dec 2010
Location: Northern Virginia
Posts: 1,499
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You might try this:
How to read older GM OBD diagnostic codes for free
OBD 1 is good for finding things like bad O2 sensor. I don't think it will help with your Temp Gauge problem.
Let me know if you get a different code than one on the list (link to list of codes is in the procedure). Somewhere on my back-up drive I should have an expanded list I used on an old Cadillac, but I would have to search a bit for it then send it to you via PM.
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Tom and Amy from Northern Virginia.
2000 Allegro 454/Workhorse P32/TST/Crossfire
Life is a DIY project, so own less and live more
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05-24-2015, 06:35 AM
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#10
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Senior Member
Monaco Owners Club Freightliner Owners Club
Join Date: Mar 2015
Posts: 169
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scan tool
I have a innova modle 3120 it reads both OBD 1& 2 got it at auto zone about 250.00 i like it because it works on all my stuff Mike
__________________
lead follow or get out of the WAY
1998 HR Endeavor 5.9 Cummins
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05-24-2015, 08:49 AM
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#11
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Member
Fleetwood Owners Club iRV2 No Limits Club
Join Date: Apr 2014
Posts: 64
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There is a link to this procedure below at #9.
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05-24-2015, 08:58 AM
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#12
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Member
Fleetwood Owners Club iRV2 No Limits Club
Join Date: Apr 2014
Posts: 64
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Thanks for that information. I was looking at the code list, and also don't think it's going to help me with troubleshooting the temperature gauge problems. There is a code for a high and low temperature history, (I guess), but I don't see how it can tell me if the sensors are working.
If you find that expanded list, and it shows anything that might help me, I really would appreciate receiving that information.
I 'think' there is a way to test the sensors with an Ohm Meter, but haven't run across that information yet.
Thanks again.
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05-24-2015, 10:35 AM
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#13
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Senior Member
Workhorse Chassis Owner
Join Date: Jun 2003
Location: Palisade CO
Posts: 3,588
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Quote:
Originally Posted by tomwalt
You might try this:
How to read older GM OBD diagnostic codes for free
OBD 1 is good for finding things like bad O2 sensor. I don't think it will help with your Temp Gauge problem.
Let me know if you get a different code than one on the list (link to list of codes is in the procedure). Somewhere on my back-up drive I should have an expanded list I used on an old Cadillac, but I would have to search a bit for it then send it to you via PM.
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Good site. I saved it in case someone asks later.
__________________
Clay WA5NMR - Ex Snowbird - 1 year, Ex Full timer for 11 years - 2004 Winnebago Sightseer 35N Workhorse chassis. Honda Accord toad.
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05-24-2015, 10:54 AM
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#14
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: Apr 2015
Location: Western WI
Posts: 688
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Quote:
Originally Posted by jb60
Thanks for that information. I was looking at the code list, and also don't think it's going to help me with troubleshooting the temperature gauge problems. There is a code for a high and low temperature history, (I guess), but I don't see how it can tell me if the sensors are working.
If you find that expanded list, and it shows anything that might help me, I really would appreciate receiving that information.
I 'think' there is a way to test the sensors with an Ohm Meter, but haven't run across that information yet.
Thanks again.
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Temp was one of the problems. There were two sensors and the lines to them were burnt. They replaced the sensors with aftermarket units and put a heat shield on the new wiring. The only downside was the aftermarket sensor gave a high indication, about 20 difference. So if it is your sensors, try and get the OEM parts from Chevy.
__________________
2001 Itasca Horizon 36LD Cat
Retired Air Force, One lovely Angel , 2 Cats and three birds.
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