dividee Posted February 21, 2011 Report Share Posted February 21, 2011 hey guys ive just recently fitted a surge tank setup in my car. However now my engine is not getting enough fuel as the car is not running smoothly and is misfiring. Ive double checked all the hoseing and everything looks to be in the right spot. I'm thinking the fuel pump is not pumping enough fuel?? Also when i switch the car to start the fuel pump doesnt prime, only until i completely turn the car on then it decides to pump fuel. If anybody can help me out it would be greatly appreciated. Thanks Quote Link to comment Share on other sites More sharing options...
Trev Posted February 21, 2011 Report Share Posted February 21, 2011 Car? Engine? What fuel pump set up are you running, do you have a pick up pump and a high pressure pump? The fuel pump will be set up to turn on with oil pressure as a safety device. Quote Link to comment Share on other sites More sharing options...
dividee Posted February 21, 2011 Author Report Share Posted February 21, 2011 hi trev its 4age sprinter. I'm running a facet style lift pump and possibly a bosch 070 or 044 fuel pump (came with car) thats about it. Any idea what it could be?? Quote Link to comment Share on other sites More sharing options...
Trev Posted February 21, 2011 Report Share Posted February 21, 2011 Have you got the lowest point of the surge tank feeding into the bosch pump, the facet feed above that and the return to the tank above that? Is the return from the engine bay going back to the surge tank or to the fuel tank? Quote Link to comment Share on other sites More sharing options...
dividee Posted February 21, 2011 Author Report Share Posted February 21, 2011 yep everything is correct. Lowest point to fuel pump > fuel rail. Than return from engine to surge and overflow back to fuel tank Quote Link to comment Share on other sites More sharing options...
Trev Posted February 21, 2011 Report Share Posted February 21, 2011 Can you get some pics? I would say that you may have to hook the Facet up to ignition power so you can prime the system before the car starts but even then it should be supplying enough fuel to fill the tank. Quote Link to comment Share on other sites More sharing options...
ke70dave Posted February 21, 2011 Report Share Posted February 21, 2011 I would say that you may have to hook the Facet up to ignition power so you can prime the system before the car starts but even then it should be supplying enough fuel to fill the tank. nah you shouldnt need that. the surge tank should be always full, and over flowing when running (ie slightly pressurised). thus no priming needed. dividee, maybe draw a diagram in paint exactly how you have hooked up the pipes. showing which pipe on the surge tank you have hooked up which line. what have you done with the return from the fuel rail? Quote Link to comment Share on other sites More sharing options...
Trev Posted February 21, 2011 Report Share Posted February 21, 2011 yep everything is correct. Lowest point to fuel pump > fuel rail. Than return from engine to surge and overflow back to fuel tank nah you shouldnt need that. the surge tank should be always full, and over flowing when running (ie slightly pressurised). thus no priming needed. dividee, maybe draw a diagram in paint exactly how you have hooked up the pipes. showing which pipe on the surge tank you have hooked up which line. what have you done with the return from the fuel rail? I know you shouldn't, that is what I said. Bolded part, it pays ton read a thread before you comment. Quote Link to comment Share on other sites More sharing options...
ke70dave Posted February 21, 2011 Report Share Posted February 21, 2011 yeah i read that trev, i just didnt quite understand what he meant on first read. dividee does yours look like this? http://www.enginebasics.com/EFI%20Tuning/Images/Surge%20Tank.gif Quote Link to comment Share on other sites More sharing options...
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