[s-cars] Fuel Injectors ultra-sonically Cleaned

Mon Apr 14 09:04:21 PDT 2008

I have to reply to this, if for no other reason than the 2 previous posts were made by fellow Realtors.... 8^)

--
Wylie Bean
Broker/Owner
Aspenwood Realtors 
Greensboro NC (still with steadily increasing property values!)

and 

Wylie Bean
TheRingmeister at triad.rr.com
90 cq
91 90q20v sport
92 UrS4
01 allroad

---- Devon <devon at 1remax.com> wrote: 
> Nathan,
> You have too much free time on your hands.  Very industrious of you "das
> motor" head.
>  
> Devon T. James
> RE/MAX MUTUAL Realty
> Senior Broker Associate
> Voice & Fax: 206-515-1771
> www.1remax.com
>  
>   _____  
> 
> From: Nathan Belo [mailto:nathan at license2sell.com] 
> Sent: Sunday, April 13, 2008 3:30 PM
> To: northwest Audi Enthusiasts
> Cc: s-car-list at audifans.com; Eric Marr
> Subject: Fuel Injectors ultra-sonically Cleaned
>  
> I had a misfire due to a bad #3 coil, so I bought the coil ($149.85) from
> Scott Mockry after using his advice to diagnose said misfire
> http://www.sjmautotechnik.com/trouble_shooting/S4_Ignition.htm  .  This is
> the 4th time I've had a misfire since 89K miles when I bought the car in
> 2000.  First 2 times was a bad Power Output Stage (POS/ignition control
> module), last 2 times #4 coil & now #3 coil.  I had 204,500 miles so I put
> in 5 new Bosch F5DPOR plugs ($13.75 ea.) in while I was at it.  To install
> the new coil we (my high school buddy, Curtis of CMarr Automotive helped me)
> cut the wire under the coil cover & soldered the wire & shrink-wrapped it
> using a mini-butane torch (creme brulee anyone?).  Since the OEM coil lasted
> 204,500 miles I'd rather stay with the OEM set-up rather than mess with
> cheaper $35/piece coils from a 1.8T & have to run without the coil cover &
> not know how long the coils will last?
> 
> I also got the notice in the mail that my license plate was expiring in May
> & that I needed an emission test so I figured why not get the fuel injectors
> with 204,722 miles ultra-sonically cleaned.  Eliot Lim recommended the BG
> vacuum system carbon clean service ($279)
> http://www.bgprod.com/products/fuelair.html at the local dealer, University
> Audi, but I declined since it left the injectors on the car, which meant the
> old deteriorating seals & o-rings would be still be deteriorating on the car
> (see pictures).  So I began my investigation on where to get my injectors
> cleaned.  I located 2 local firms:  http://www.docinjector.com/
> http://www.witchhunter.com/index.php4   I went with Doctor Injector in
> Renton on advice of CMarr Automotive (710 S. Jackson, Seattle, WA
> 206-405-4402) that used them & was charged $23 ea. (supposedly wholesale
> price, told him I was from the Audi Club & a referral from CMarr).  I picked
> Dr. Injector because I could have my plugs back the same day & watch the
> process.  Witchhunter wanted $18 for the service ($5 cheaper) but would need
> the plugs for 2-3 days & I couldn't watch the process.  Some firms just swap
> out the plugs with already cleaned ones they have on stock.
> 
> The manager, Art Pipkin, of Dr. Injector Renton was very friendly and a
> go-kart racer labeled each injector because I gave him the order they came
> out of the engine.  When I pulled out #5 injector the pintle cap broke off
> fortunately it didn't fall in the chamber (see picture).  There are 4 holes
> under the pintle caps and during the spray test I could see that some were
> clogged with only 2 holes functioning (Hmmm, I wonder what that does for my
> gas mileage & hp with expensive cost of gas?).  Art said Techron & other
> cleaners only maintain an already clean injector & the only way to remove
> the hard deposits is via ultra-sonic cleaning. Here's the slide show:
> http://s242.photobucket.com/albums/ff107/belikeh20/Fuel%20Injectors/
> 
> Test A Injector Test before cleaning: (40 PSI pressure setting)
> Injector#   OHMS  Voltage-Drop Flow-Rate
>   1               15.8            7.94            65ml
>   2                 "                7.89            66ml
>   3                 "                7.90             "
>   4               15.9            7.93             "
>   5               15.8            7.90             "
> 
> Test B Injector Test After cleaning: (Comments: Cleaned & Flow matched)
> Injector #                                       Flow-Rate
> Flow-Rate-Increase
>   1                                                      72ml
> 10.8% 
>   2                                                      72ml
> 9.1%                         
>   3                                                      73ml
> 10.6%
>   4                                                      72ml
> 9.1%
>   5                                                      72ml
> 9.1%   
> 
> Car runs really smooth now.  While testing I got a speeding ticket 57 in a
> 40mph on HWY 99 North just after the Aurora Bridge.  Passed emissions & paid
> my $54 for license renewal ($3 filing fee, $13 RTA Tax, $38 Gross Weight Fee
> for commercial/truck plates).  Some may ask why not go RS2 turbo &
> injectors...well I have a '05 Ducati M1000s for speed & it gets 45mpg & is
> more fun on the track.
> 
> Nathan Belo
> Seattle, WA
> '92 Pearl/Ecru //S4 IAIII+, CGR 6-spd, 2B BR brakes, 17x8 Ronal R38, RED
> Samco hoses, 710n BPV 
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list