Sunday, January 03, 2010 - 06:25 pm, by: Joshua White(Joshua_88)
hey guys,
My bosch 040 is making funny noises.
When i have a full tank and i just leave it idle i can hear the pump making sounds like it's sucking air every now and then
and the other day i went to over take and it started to lean out which makes me think the pump is starting to fail.... the only difference i've made to the car since the tune is replaced an old O2 sensor which i don't think could have this kinda big impact on it, i could be wrong tho.
I just wanna see what everyone's thoughts are on it before i go and buy a new pump, thinking of trying a walbro. The bosch is good but loud, i may have gotten a dud one tho, did buy it from ebay.....
Monday, January 04, 2010 - 12:04 am, by: Joshua White(Joshua_88)
well i flashed the ecu back to the old firmware and no change, i disconnected the battery till completely dead and nothing..... got me stumped but it's extremely annoying and it's pi$$ing me right off!
Tuesday, January 05, 2010 - 12:24 pm, by: Andy Flight(Cobber)
I rubber mounted the walbro using some viton o rings, made a huge difference. My Bosch was like a coffee grinder on anything more than a warm day. I have since learned that they are all like that and probably didn't need to change it out as I was not getting any fuel pressure loss just a noise.