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Forced Induction Forum Sponsored by Active Autowerke
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Old 07-21-2013, 07:07 PM   #61
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Have u checked the small relay by the AEM that the pump plugs into?
I'll take a look. Everything seems tight and goog. The car is a 6spd btw.
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Old 07-22-2013, 12:29 AM   #62
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Some things to try..

Can you hear the rear in-tank pump turn on and prime when you first turn the key to the on position (Pull the rear cushion out and see if you can hear it), or if you haves access to a GT1 you can trigger the factory in-tank pump to test..

Also note, the 2nd hpf inline pump does not turn on until ~4 psi or so. (Based on the settings from my unlocked HPF/AEM)
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Old 07-22-2013, 06:16 PM   #63
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Pumps run. Gt1 was used to test. Now what?
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Old 07-22-2013, 07:38 PM   #64
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HPF E46 turbo Grassroots Support

Quote:
Originally Posted by supersickbimmer View Post
Pumps run. Gt1 was used to test. Now what?
When u say it won't start... Does it turn over? If it does and u r getting fuel then it might be no spark. I am also assuming u r not getting any irregular codes? Do u have any add ons for theft that might disable engine fuel spark etc?


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Old 07-22-2013, 07:44 PM   #65
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HPF E46 turbo Grassroots Support

Quote:
Originally Posted by supersickbimmer View Post
Pumps run. Gt1 was used to test. Now what?
Is ur Aem unlocked ? Possibly the Aem might not be getting power .... It controls ur fuel if no power no start.. Also check the connections to the AEM ems at the harness itself... Make sure they r seated all the way in... Gen 1 harness should have them zip tied. Might want to pull DME cover to make sure connectors r all plugged in firmly... It's also possible that the jumper box small 2x 15 pin connector is hooped. I just repaired one with a car that wouldn't start and it solved his issue. If u pull that connector out and see that any pins r darkened then that's ur problem... If so shoot me a pm and I can get u on the road.


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Old 07-22-2013, 08:59 PM   #66
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My AEM is still locked at the moment. It seems as if the ems is not sending the signal for the pumps/injectors or spark. Everything else the ems controls works. I'm going to have the guys look closer at the jumper box. Thanks Being3 for the offer.

Fabio.
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Old 07-23-2013, 10:13 AM   #67
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Re: HPF E46 turbo Grassroots Support

Sorry for not getting back sooner. forgot about this. Its Ur cam or crank sensors. Cam sensors usually go out slower. Work fine when cold start acting up when hot. crank usually just goes bad all of a sudden. Find someone to swap one at a time.

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Old 07-23-2013, 01:06 PM   #68
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Steed Speed WasteGate Gasket

Anyone need a gasket for the steed speed manifold waste-gate flange here r the dimensions. They were drawn up by a fellow HPF owner who received them from Steed Speed.

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Old 07-23-2013, 02:20 PM   #69
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Re: HPF E46 turbo Grassroots Support

Quote:
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Anyone need a gasket for the steed speed manifold waste-gate flange here r the dimensions. They were drawn up by a fellow HPF owner who received them from Steed Speed.

Attachment 518051
Thats for the older manifold not the cast iron one right?

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Old 07-23-2013, 02:23 PM   #70
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HPF E46 turbo Grassroots Support

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Thats for the older manifold not the cast iron one right?

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Should be for both both.... As far as i know the cast log manifold is a direct replacement for the mild steel steed speed..


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Old 08-05-2013, 06:02 PM   #71
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HPF E46 turbo Grassroots Support

Anyone know where I can get 750cc or higher injectors online?


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Old 08-05-2013, 06:39 PM   #72
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Anyone know where I can get 750cc or higher injectors online?


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Contact sales@lab22.com they'll get w/e you want for the best price.
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Old 08-20-2013, 05:32 PM   #73
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HPF E46 turbo Grassroots Support

Anyone Experience this with Walboro 255 and I line pump?

Hpf 6766 stage 2.5 Fic1100 injectors 94 octane Made 633whp @ 6500 started to go lean.

I'm guessing its the pump. I'm running 19psi and when watching the fuel pressure u see it climb to 92 psi hold then above 6500 it starts to taper off all the way to 50psi and the new injectors r above 80% duty cycle. Seems that the flow can't keep up with demand.




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Old 08-20-2013, 06:43 PM   #74
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Anyone Experience this with Walboro 255 and I line pump?

Hpf 6766 stage 2.5 Fic1100 injectors 94 octane Made 633whp @ 6500 started to go lean.

I'm guessing its the pump. I'm running 19psi and when watching the fuel pressure u see it climb to 92 psi hold then above 6500 it starts to taper off all the way to 50psi and the new injectors r above 80% duty cycle. Seems that the flow can't keep up with demand.




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Inline pump may have died too...in all honesty those fuel pumps have run for 5 years now? You could replace the in-tank and in-line pumps with new Walbro's or rebuild the whole system with Radium goodies. I would hit up Radium if you want something specific and order through Lab22 once you know what you need
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Old 08-20-2013, 06:55 PM   #75
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HPF E46 turbo Grassroots Support

Quote:
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Inline pump may have died too...in all honesty those fuel pumps have run for 5 years now? You could replace the in-tank and in-line pumps with new Walbro's or rebuild the whole system with Radium goodies. I would hit up Radium if you want something specific and order through Lab22 once you know what you need
Thanks for the quick reply. I tested the inline and it Powers up and runs. R thesse pumps when going / failing loose pressure like Im experiencing ? or Am i maxing out the pump itself? the pump is rated at 650hp for a turbo on the website? I'm looking at replacing the in tank and inline and just go with Walbro 400 gas in the tank by itself. I like the raduim surge tank etc.. But I'm really on the street and run a convertible and would be a lot of work and I not a big fan of fuel lines in my truck. On a race car with fire suppression etc thats ok.


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Old 08-20-2013, 07:20 PM   #76
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Thanks for the quick reply. I tested the inline and it Powers up and runs. R thesse pumps when going / failing loose pressure like Im experiencing ? or Am i maxing out the pump itself? the pump is rated at 650hp for a turbo on the website? I'm looking at replacing the in tank and inline and just go with Walbro 400 gas in the tank by itself. I like the raduim surge tank etc.. But I'm really on the street and run a convertible and would be a lot of work and I not a big fan of fuel lines in my truck. On a race car with fire suppression etc thats ok.


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Sounds like the pump is going out most likely but still the 400 should give you that boost you want.
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Old 08-26-2013, 01:28 AM   #77
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Are you absolutely sure that the inline pump is coming on under boost? You could wire in a cockpit light to the power wire of the pump to make sure the pump is getting power under boost. On my car the pump did not come on and I found a loose pin connection at either A1 or A2 (these are ground connections for the control circuits of the fuel and scavenge pumps solenoids at the AEM computer). I forget which one is which. On my car both A1 and A2 were loose and my fuel pump never came on for two years. But with only 7 PSI boost it wasn't too much of a problem running just on the intank pump.

Terry
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Old 08-26-2013, 10:06 AM   #78
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HPF E46 turbo Grassroots Support

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Are you absolutely sure that the inline pump is coming on under boost? You could wire in a cockpit light to the power wire of the pump to make sure the pump is getting power under boost. On my car the pump did not come on and I found a loose pin connection at either A1 or A2 (these are ground connections for the control circuits of the fuel and scavenge pumps solenoids at the AEM computer). I forget which one is which. On my car both A1 and A2 were loose and my fuel pump never came on for two years. But with only 7 PSI boost it wasn't too much of a problem running just on the intank pump.

Terry
I tested it by triggering it in the AEM. Works fine. I'm replacing the inline 255 today and the in-tank later this week. I suspect I just have worn them out. 3 years old. The weakness is showing up under boost.


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Old 08-26-2013, 11:29 AM   #79
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HPF E46 turbo Grassroots Support

Im wanting to connect my VSS sensor to my Aem my harness has VSS plug on aem harness. I was originally going to splice into actually sensor itself. But if someone could provide me with pin out of the DME. So i wont have to run the wiring so far. That would be great. Thanks. Im wanting to do this so i can have boost by gear. Thanks


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Old 08-26-2013, 12:01 PM   #80
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HPF E46 turbo Grassroots Support

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Im wanting to connect my VSS sensor to my Aem my harness has VSS plug on aem harness. I was originally going to splice into actually sensor itself. But if someone could provide me with pin out of the DME. So i wont have to run the wiring so far. That would be great. Thanks. Im wanting to do this so i can have boost by gear. Thanks


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On 40 pin black connector on BMW ECM pin 17 is output speed signal. I. Not sure if its from the transmission or wheel sensor. AEM VSS is B33 for Generation 1 ems. Other side shielded ground.



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