Fuel Pump Solution - All Failure Modes
04-08-2010, 01:16 AM
#276
so i went to melt the sophon, idk how i messed it up but the spring and black piece popped out <lost the black piece>. can i just plug the hole that the black peice at the bottom covers or does the hole just above the black tube come into play. i figure i just block that hole and it will be the same thing but that hole above the tube has me wondering.
04-08-2010, 09:03 AM
#278
Turbos blow!!
Join Date: Oct 2004
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That's what I had thought for some time but nothing changed with the tune/setup of the car. I'm going to try cleaning the MAF sensor and see if that helps. It's very difficult to diagnose a detonation issue. You can only do trial and error so many times. I logged a couple of more runs yesterday and the afr's are in the mid 11s around 5-5.5k but are in the mid 12s-low 13s at 7k which is were the issues are at.
Last edited by Cattywampus; 04-08-2010 at 09:05 AM.
04-08-2010, 10:03 AM
#280
Turbos blow!!
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Not yet. Almost dont want to risk the rpm increase that is required to test it. Guess I will need to and if something happens to the engine then I guess it was meant to happen.
04-08-2010, 10:21 AM
#281
Kris, when was the last time you pulled the plugs out... I know we changed the wires and coils, but have you checked the plugs themselves? I do not think that there could be much of an issue with them considering the logs your getting but I would check anyway.... btw take the drivers side wheel off this time and attack from the wheelwell and not from underneath.
This should only take 10 minutes to do.
This should only take 10 minutes to do.
04-08-2010, 10:37 AM
#282
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Probably something you've already thought of, but adjust your WG to lower pressure until you figure out what is wrong. Much better than potentially losing an engine while troubleshooting...
04-08-2010, 10:58 AM
#283
Turbos blow!!
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Kris, when was the last time you pulled the plugs out... I know we changed the wires and coils, but have you checked the plugs themselves? I do not think that there could be much of an issue with them considering the logs your getting but I would check anyway.... btw take the drivers side wheel off this time and attack from the wheelwell and not from underneath.
This should only take 10 minutes to do.
This should only take 10 minutes to do.
04-08-2010, 11:00 AM
#284
Turbos blow!!
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I will be doing that Monday morning prior to the fuel pressure test. I am just going to test it and move on to the next thing.
04-19-2010, 02:28 PM
#286
Registered
2) Replace the entire unit with a new OE unit
So far the most practical solution. At ~$135, it is relatively easy and requires very little action on the part of the user. However, it does not address the under-performing pump motor itself and it will eventually fail again.
Where can I obtain an OE fuel pump for $135? Also, how special is the tool to get the ring/cap off the fuel pump? Is there a video or step by step write up on the removal of the OE pump. Taking the seat cushion and metal cover off to reveal the pump appear to be the beginning to "lake of tool to remove said pump"
Thanks for any and all help!
So far the most practical solution. At ~$135, it is relatively easy and requires very little action on the part of the user. However, it does not address the under-performing pump motor itself and it will eventually fail again.
Where can I obtain an OE fuel pump for $135? Also, how special is the tool to get the ring/cap off the fuel pump? Is there a video or step by step write up on the removal of the OE pump. Taking the seat cushion and metal cover off to reveal the pump appear to be the beginning to "lake of tool to remove said pump"
Thanks for any and all help!
04-19-2010, 05:41 PM
#288
Registered
Thank you Gentlemen!
Charles, since my 8 is still running, is your about a week a good ship to me date on the new upgrade unit? Here is your chance to reveal the price of your upgrade pump.
Please PM me the details on the new pump. I may be able to wait, if my 81K original holds out and keeps me from stopping along side the road.....Broke!
Charles, since my 8 is still running, is your about a week a good ship to me date on the new upgrade unit? Here is your chance to reveal the price of your upgrade pump.
Please PM me the details on the new pump. I may be able to wait, if my 81K original holds out and keeps me from stopping along side the road.....Broke!
05-11-2010, 05:19 PM
#290
Rotary Addict
Well I have just finished installing the rebuilt OEM Walbro fuel pump from BHR. I can tell you first hand that the SST they ship with the pump makes removing the plastic ring a breeze. The tool didn't cause any damage to the tabs and the ring was able to be torqued properly when reinstalling. The pump appears to be working well. There is a slightly different sound when putting the key in the ignition and hearing the fuel pump test be carried out. It seems as if the throttle response was slightly improved but that could just be placebo. I will be doing my first HPDE on the new pump this weekend and I'll keep everyone posted on the results. God willing, this pump will solve my fuel starvation issues in left handed turns. I will post back with an update after the weekend. BHR Rocks!!!!
05-18-2010, 10:21 AM
#295
Rotary Addict
Just to check in here again with an update. This past weekend I spent at Summit Point Motorsports Park with the Track Daze organization. It was a great weekend driving on Shenandoah. I had absolutely no fuel starvation issues at all during the whole weekend. Just to test how good Charles' pump really is, I ran all four of my 30 min sessions with no more than a half tank of gas (gotta save weight haha). Even at the end of the 30 min session with the car approaching a quarter tank of gas, I still had no issues on any of the left handed sweepers. Thanks BHR for another great product!!!
Last edited by Gdawg522; 05-18-2010 at 10:28 AM.
06-10-2010, 07:43 PM
#296
Original Turbo 'd Auto !!
Would someone help a fellow Rotorhead out?
Thinking that my car would have been done much sooner than it is, I adopted the "drill out the Siphon Venturi assembly to 1/8", theory.
Well we know that is unnecessary at this point. Can someone give me the ID of a non-modified siphon venturi assembly? I'd really like to get this fixed.
Thinking that my car would have been done much sooner than it is, I adopted the "drill out the Siphon Venturi assembly to 1/8", theory.
Well we know that is unnecessary at this point. Can someone give me the ID of a non-modified siphon venturi assembly? I'd really like to get this fixed.
Last edited by 09Factor; 06-10-2010 at 07:46 PM.
06-10-2010, 08:45 PM
#298
Original Turbo 'd Auto !!
09-06-2010, 07:55 AM
#300
