trebor69 Posted July 31, 2015 Share Posted July 31, 2015 Fitted new pump as I'm going BPU, already have 3" decat, 3" catback, restrictor ring and colder plugs so thought I'd take it out and see what it's like .....drove off boost for a couple of miles to the bypass and then put my foot down for it to start spluttering and then die, I managed to roll to a safe place where I suspected it may have been a fuel issue as I was on empty and it happened going up hill but then it fired up so I trundled to the fuel station and filled up, coming back up the bypass I put my foot down only for it to splutter and die again but it fired up again on the turn of the key so I trundled home and took the pump out again to check it was ok, I changed the filter on the bottom of the pump and re soldered the wires then put it back in and took it out again....back to the bypass off boost then after putting my foot down it spluttered and stopped. I coasted to a lay by but it would not run, it would fire up and then die, eventually I managed to get in touch with someone to bring me some tools so I could take the fuel pump assy out of the tank and for them to drive me home where I refitted my original pump and then drove me back to the lay by where my car had started to attract attention but luckily it was still in one piece and after refitting the pump and sender assy in the lay by it fired up first turn of the key and now runs sweet again. Please can somebody tell me what I did wrong as I'm sure it was fitted correctly, is it the pump thats faulty? Yes it's a brand new pump. Would just like a few opinions before I contact the seller, Thanks. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 1, 2015 Share Posted August 1, 2015 There are plenty of fake pumps on Ebay.... Is it from there? Quote Link to comment Share on other sites More sharing options...
trebor69 Posted August 1, 2015 Author Share Posted August 1, 2015 There are plenty of fake pumps on Ebay.... Is it from there? Yes it is..... Should I be bypassing the fuel pump ecu or doing the 12v fuel pump mod or is it definitely a fake? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 1, 2015 Share Posted August 1, 2015 No, you should not have to do either,m and there are good reasons NOT to do the bypass mod, as it will heat the fuel more. assuming nothing else went wrong during the conversion I would suspect the pump is faulty. Are you confident enough to monitor the current draw of the new pump with a multimeter, assuming you have one that will read up to at least 10 amps? If so do it witgh hefty extended leads so you can read it in real time in the car and see what the pump is doing when the engine misses or stops. Quote Link to comment Share on other sites More sharing options...
trebor69 Posted August 1, 2015 Author Share Posted August 1, 2015 Not sure what my multimeter will read but I know the car will not run for longer than 2 seconds max with the Walbro fitted and I really don't want to have to take my original pump back out and refit (de soldering and re soldering etc etc) the one that won't run my car just to measure precisely how faulty it is knowing that I then have to swap it round yet again just so I can use the car until I get a non faulty one. I will see about sending it back, where do you suggest I buy a 255lph straight fit pump that WILL work? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 1, 2015 Share Posted August 1, 2015 You cam measure the current draw away from the pump, no need to go inside the tank, that way you will KNOW if it's the pump or something else. Quote Link to comment Share on other sites More sharing options...
trebor69 Posted August 1, 2015 Author Share Posted August 1, 2015 The pump in question is in a box in the garage, I know it was fitted correctly as I'm anal that way, car is running fine and boosting fine with the standard pump in. Can I test the pump by putting a 12v feed to it and measure it that way without putting it back in the car, is that what you're saying? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 1, 2015 Share Posted August 1, 2015 No, it needs testing under a hydraulic load really. Quote Link to comment Share on other sites More sharing options...
trebor69 Posted August 1, 2015 Author Share Posted August 1, 2015 Thanks for the info Chris, it's going back. Quote Link to comment Share on other sites More sharing options...
trebor69 Posted August 24, 2015 Author Share Posted August 24, 2015 Sent it back, had to wait ages for refund but bought one from Whifbitz, fitted it and it runs beautifully Don't buy cheap Ebay crap Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.