Alky pump problems...any ideas????
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 822
Likes: 0
From: Grafton Ohio
Alky pump problems...any ideas????
I got my ECS restrictor plate in the mail the other day, so I removed my blower to pulley it down and install the plate. When I got everything back together, I decided to blow a purge of alky through the intake tube before reinstalling it back to the tb. Much to my surprise, nothing came out of the nozzle. My tank is full and I could siphon fuel through the line that connects to the nozzle, and when you manually hit the test button, you can hear the pump whine and get progressively louder as you increase the gain. I'm going to jack up the car tomorrow and get to the pump and see if anything is clogged. My question is has anyone else that is running ECS/Alky control setups have/had the same symptoms as me? I want to narrow down the possible causes before I contact ECS. FWIW this kit is about 14 months old and I know that there have been upgrades since then.
Thanks, Jer.
Thanks, Jer.
Safety Car
Joined: Apr 2004
Posts: 3,932
Likes: 8
From: Hayward California
If the line from the pump to nozzles is not clogged... which sounds like it isn't... and you can siphon fuel through the pump, then it's the seals in the pump. Pretty easy to replace. What were you using and where'd you get it? Some methanol is more corrosive than others from what I've heard.
BTW, the upgraded pumps do include the improved seals as well as the pressure sensor which would've told you the pump wasn't pressurizing the line.
Arnel
BTW, the upgraded pumps do include the improved seals as well as the pressure sensor which would've told you the pump wasn't pressurizing the line.
Arnel
Premium Supporting Vendor
Joined: Oct 2004
Posts: 23,599
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From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
Originally Posted by AVB
If the line from the pump to nozzles is not clogged... which sounds like it isn't... and you can siphon fuel through the pump, then it's the seals in the pump. Pretty easy to replace. What were you using and where'd you get it? Some methanol is more corrosive than others from what I've heard.
BTW, the upgraded pumps do include the improved seals as well as the pressure sensor which would've told you the pump wasn't pressurizing the line.
Arnel
BTW, the upgraded pumps do include the improved seals as well as the pressure sensor which would've told you the pump wasn't pressurizing the line.
Arnel
Thanks Arnel,
When your done checking it if there is a problem we'll send you the updated seals N/C.
Also crank up your gain **** to max and see if there is any differnce.
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 822
Likes: 0
From: Grafton Ohio
Thanks, I buy VP fuel from a mechanic at work who races an alky rail. I just recently pulled the car from storage and I did not drain the alcohol system before putting it away. Could that have destroyed the pump seals? I figured since the pump was designed to flow alcohol it did not require draining the system.
Doug, I'll keep you posted when I get to the pump. I greatly appreciate the offer for new seals. Your customer service is the best!
Jer.
Doug, I'll keep you posted when I get to the pump. I greatly appreciate the offer for new seals. Your customer service is the best!
Jer.
Former Vendor
Joined: Feb 2004
Posts: 10,876
Likes: 8
From: Las Vegas NV
St. Jude Donor '06 & '12
I had this same problem. What I found was, that in the PAC box I didnt have one of the ***** turned up high enough. According to Julio he said that it has something to do with the amount of juice the pump sees. If the **** is turned down to low the pump will not spin fast enough to pump the fluid (although you can hear the pump run like its working). I had to turn that **** up, then turn the gain **** down a little. After that I never had a problem again.
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 822
Likes: 0
From: Grafton Ohio
Update
I just came from the garage and I think it's the pump seals. I checked all lines for clogs, there were none. To eliminate the possibility of the gains not being set correctly I jumped a 12v power source to the pump directly and still nothing out of the pump. I'm going to contact ECS for some new seals.
Jer.
Jer.
Burning Brakes
Joined: Jul 2004
Posts: 759
Likes: 12
From: Tampa Fl
The new updates have been extremely successful. As of Oct'05 when the changes occurred, there have been no pump failures of any kind. 6 months and counting 
If you dont feel confortable undertaking the replacement/testing of the pump.. I dont charge any labor on pump issues to any system we have ever sold. But that requires the pump to be sent in.. maybe a good time to get the new pressure sensing update done as well.. and knowing the pump going back on the car has been fully tested..
If you dont feel confortable undertaking the replacement/testing of the pump.. I dont charge any labor on pump issues to any system we have ever sold. But that requires the pump to be sent in.. maybe a good time to get the new pressure sensing update done as well.. and knowing the pump going back on the car has been fully tested..
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 822
Likes: 0
From: Grafton Ohio
Originally Posted by Julio
The new updates have been extremely successful. As of Oct'05 when the changes occurred, there have been no pump failures of any kind. 6 months and counting
If you dont feel confortable undertaking the replacement/testing of the pump.. I dont charge any labor on pump issues to any system we have ever sold. But that requires the pump to be sent in.. maybe a good time to get the new pressure sensing update done as well.. and knowing the pump going back on the car has been fully tested..
If you dont feel confortable undertaking the replacement/testing of the pump.. I dont charge any labor on pump issues to any system we have ever sold. But that requires the pump to be sent in.. maybe a good time to get the new pressure sensing update done as well.. and knowing the pump going back on the car has been fully tested..
This is an AWESOME service!! If I should choose to send you my pump what kind of turn around time should I expect?
Jer.
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Supporting Vendor
Joined: Jul 2003
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From: http://www.mphparts.com 800-364-1975
Originally Posted by Julio
One day turnaround if UPS gets it here early enough, if not next day
Burning Brakes
Joined: Jul 2004
Posts: 759
Likes: 12
From: Tampa Fl
Originally Posted by diynoob
Julio... you rock. Can you elaborate on the new seals and pressure sensor? Is this all stuff that goes into the pump? Is the pressure sensor a switch that sends 12v when pressure falls below the expected value?
The pressure sensor activates once a presetable pressure is met. The idea is that it offers an early warning.. if the pump has any issue, it will not activate and create the red to green condition. A lot of my import guys running AEM's will use this feature to activate an alterior MAP.. basically they run two programs, a low boost low timimng and a high boost high timing(nitrous).. once pressure is met..it goes to the nitrous map.
I dont know what sensor could be disabled to limit timing on the Vette PCM.. on a supercharged car.. boost is regulated by pulley and RPM.
Anyone have questions.. call me. There are somethings I just dont like discussing on-line in open forums, as there is competition in the marketplace. And information I dont wish to "give away". Hope ya understand
Melting Slicks
Joined: Sep 2002
Posts: 3,064
Likes: 95
From: MI
Julio...is without a doubt the man. He defines customer service. Turnaround is the best and he anticipates problems before I have them (well the ones that will be caused by me). And the best thing and I mean the best thing is that I never feel like the kid on the short yellow bus that I am. His systems are the best by far!!!!
Thanks Julio.
Thanks Julio.
Safety Car
Joined: Apr 2004
Posts: 3,932
Likes: 8
From: Hayward California
Juio?... He's on the very top of my coolass dude list!!!
The other day I started it up and noticed I was at 12.1 at idle. I just finished installing my alky nozzles so I checked and saw my IAT was unplugged. I reconnected and all went to normal.
That trigger showing the pump is pressurizing could easily signal a relay which could either open or set a specific resistance in place of the IAT value to the PCM. It would HAVE to be enabled ONLY when the motor is being charged (supposed to spray) and the pressure sensor doesn't activate. This way nothing is affected unless the alky doesn't spray when it's supposed to.
If a relay is used to open or set the specific resistance and the relay coil is only powered when the pump is, then all that's needed is to adjust the tune so the temp that the resistance/or open signifies runs richer and/or less timing. Maybe it could be as simple as a triggering an engine protection state which that doesn't create a lean situation.
Arnel
The other day I started it up and noticed I was at 12.1 at idle. I just finished installing my alky nozzles so I checked and saw my IAT was unplugged. I reconnected and all went to normal.
That trigger showing the pump is pressurizing could easily signal a relay which could either open or set a specific resistance in place of the IAT value to the PCM. It would HAVE to be enabled ONLY when the motor is being charged (supposed to spray) and the pressure sensor doesn't activate. This way nothing is affected unless the alky doesn't spray when it's supposed to.
If a relay is used to open or set the specific resistance and the relay coil is only powered when the pump is, then all that's needed is to adjust the tune so the temp that the resistance/or open signifies runs richer and/or less timing. Maybe it could be as simple as a triggering an engine protection state which that doesn't create a lean situation.
Arnel
Race Director
Joined: Nov 2000
Posts: 11,221
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From: CA
2017 C5 of the Year Finalist
St. Jude Donor '08
Originally Posted by Julio
I can, but not on-line as to specifics relating to the pump.
The pressure sensor activates once a presetable pressure is met. The idea is that it offers an early warning.. if the pump has any issue, it will not activate and create the red to green condition. A lot of my import guys running AEM's will use this feature to activate an alterior MAP.. basically they run two programs, a low boost low timimng and a high boost high timing(nitrous).. once pressure is met..it goes to the nitrous map.
I dont know what sensor could be disabled to limit timing on the Vette PCM.. on a supercharged car.. boost is regulated by pulley and RPM.
Anyone have questions.. call me. There are somethings I just dont like discussing on-line in open forums, as there is competition in the marketplace. And information I dont wish to "give away". Hope ya understand
The pressure sensor activates once a presetable pressure is met. The idea is that it offers an early warning.. if the pump has any issue, it will not activate and create the red to green condition. A lot of my import guys running AEM's will use this feature to activate an alterior MAP.. basically they run two programs, a low boost low timimng and a high boost high timing(nitrous).. once pressure is met..it goes to the nitrous map.
I dont know what sensor could be disabled to limit timing on the Vette PCM.. on a supercharged car.. boost is regulated by pulley and RPM.
Anyone have questions.. call me. There are somethings I just dont like discussing on-line in open forums, as there is competition in the marketplace. And information I dont wish to "give away". Hope ya understand
Julio is VERY cool!! He walked me throught my updates with the pressure sensor!! Everything has been great since.
JB