can fuel injectors on a 2.8q go bad if it runs with quarter to half tank alot of the time?..
02-15-2004, 08:52 PM
#6
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the fueling system on your car has a pump......
the pump creates pressure in the lines... there is a thing called a fuel pressure regulator which puts a maximum psi limit in bar or (14.7psi increments) as in 4 bar = 4x14.7psi or 58.8psi... if you add more pressure to the injectors they will spray more fuel during their pulse cycles...
iirc our fuel injection is continuous injection and it opens the injectors with a large electronic pulse then subsequently follows up with smaller pulses to keep them flowing for like 16ms or there abouts. If you increase the fuel pressure you will inject more fuel during that time frame.
SO if you have fuel available to the fuel pump.... and your injectors are recieving their limited fuel pressure.... then NO you wont fuxor your injectors... with 1/4 tank of gas. However not having fuel at the pump = not having an operating engine.... because with no fuel you get no ignition and no running engine. Your friend sounds clueless to me and his dealership sounds like they got him with the 18" black rubber one.
so lets think about this BS for a seccond... because he drove with 1/4 tank of gas a lot... likely to happen a lot during a cars lifetime of 100K miles or so... he ruined his fuel injectors....
sounds like volvo stealership bullshyt to me. Using garbage fuel and not changing yoru oil and ever running injector cleaner ... now that sounds more likely to ruin your engine to me, as that would constitute abuse in my book.
iirc our fuel injection is continuous injection and it opens the injectors with a large electronic pulse then subsequently follows up with smaller pulses to keep them flowing for like 16ms or there abouts. If you increase the fuel pressure you will inject more fuel during that time frame.
SO if you have fuel available to the fuel pump.... and your injectors are recieving their limited fuel pressure.... then NO you wont fuxor your injectors... with 1/4 tank of gas. However not having fuel at the pump = not having an operating engine.... because with no fuel you get no ignition and no running engine. Your friend sounds clueless to me and his dealership sounds like they got him with the 18" black rubber one.
so lets think about this BS for a seccond... because he drove with 1/4 tank of gas a lot... likely to happen a lot during a cars lifetime of 100K miles or so... he ruined his fuel injectors....
sounds like volvo stealership bullshyt to me. Using garbage fuel and not changing yoru oil and ever running injector cleaner ... now that sounds more likely to ruin your engine to me, as that would constitute abuse in my book.
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02-15-2004, 09:04 PM
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dont let it get you into too much trouble
my nick at work is TT... tommy terrets because I just start sounding off random audi and vw info at the drop of a hat.... thus I have the TT hat to wear at work.
02-16-2004, 04:50 AM
#9
Our cars are not continuous injection ... Thats the old CIS...
our cars are EFI, everything is electronic, nothing mechanical at all.. Yes, there is constant pressure in the rail, but that's not what continuous injection was.. CIS was purely mechinical, it used a distributor to send the flow of fuel to the injectors in the manifold.