VDO turbo boost gauge buzzing, how to stop it?
Submitted: Monday, Jun 26, 2006 at 08:12
ThreadID:
35274
Views:
10782
Replies:
8
FollowUps:
10
This Thread has been Archived
Member - Oldplodder (QLD)
Just installed a VDO turbo boost gauge on the 1996 2.8l TD Pajero, with a hose running from a 'T' in the fuel pump overfuel line, just above the turbo.
At most pressures, except full boost, their is a buzzing, like a high pitched rattle coming from the gauge.
Just the right pitch and volume to be really annoying.
Checking the hose from the turbo, there is a high frequency pulse in the air of the line, which seems to be converted to a buzzing in the gauge.
Any idea how to get rid of it?
Is the gauge faulty? It is a new gauge.
Reply By: S&N - Monday, Jun 26, 2006 at 22:19
Monday, Jun 26, 2006 at 22:19
the way i see it, if your using the boost guage as a diagnostic tool (making sure its not over-boosting) you should really spend the extra dosh and get a good one. in the WRX i owned, i put in BLITZ guages (boost and oil pressure). brands such as this and APEXi, have a great reputation for their accuracy. but if you just want it for the guage factor.....get what ever you want. I had a VDO and it was a couple of PSI out, and didnt hold steady at full boost, it wavered a bit. my BLITZ was
rock steady and dyno proven to be right. if you want it to look real fancy, get the APEXi EL range. it comes with a control box that you feed all the info to and it runs the guages, and they have a guage for everything. and when they are off, they have a completely black face, when you turn them on they are back lit and shine through the black lens. BE WARNED, they are very pricey!!!!
AnswerID:
180508
Reply By: Member - Oldplodder (QLD) - Saturday, Jul 01, 2006 at 13:30
Saturday, Jul 01, 2006 at 13:30
Thanks every one for replying.
All very helpful.
There was one query about my connection in regard to 't'ing into the ovefuel line.
I have connected the boost gauge into the 3mm line which connects into the outlet of the turbo about 100mm above the turbo, and this line runs to the fuel pump, and I understand that when the fuel pump senses a high level of boost, it injects more fuel to suit.
This is just above the 3mm line that connects in here also and runs to the wastegate on the turbo so the wastegate can sense the out put and do it's job.
Trying VDO this week, and if no success, will put a restrictor in the gauge line. I may have a an old carby jet I can use (just got to find the old solex off the beetle), so thanks for that suggestion.
AnswerID:
181353