Blocked injectors ?

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fatboy · #1 Post by **fatboy** » Mon Oct 15, 2012 6:11 pm

As everything on the fuel supply side has been checked, checked re checked, fuel is still not reaching the cylinders but fuel supply line full.
That leaves me to think blocked injectors.
The bike has been stood up for nearly 3 years, there is some manky shite in the tank so safe to assume crap deposits in injector bodies.
Someone did suggest soaking them in cleaner but im not sure it would work as the injectors are closed each end (opening under fuel pressure ?)
Any advice, info or contacts would be most welcome !

Aladinsaneuk · #2 Post by **Aladinsaneuk** » Mon Oct 15, 2012 6:17 pm

Call griff at aprilia performance

fatboy · #3 Post by **fatboy** » Mon Oct 15, 2012 6:40 pm

Ta ! That makes sense, the man who knows all !

#4 Post by **Kwackerz** » Mon Oct 15, 2012 7:43 pm

From Griff via twitter:

(he) needs to find out if the bike is electronically injecting first, if it is then yep blocked injectors if not , electrics issue..

Griff's work number: Aprilia Performance 01827 285500

Viking · #5 Post by **Viking** » Mon Oct 15, 2012 10:02 pm

It is possible for injectors to "glue" closed with dried up fuel. When I did my EFI project (so many years ago now), I had to manually push the injectors open with the point of a nail before they would work.

Be warned though - there are several different types of nozzles that injector manufacturers use. You may not be able to push the centre bit back into the injector body. In which case it would be a job for the professionals.

D-Rider · #6 Post by **D-Rider** » Mon Oct 15, 2012 10:51 pm

Viking wrote:
Be warned though - there are several different types of nozzles that injector manufacturers use. You may not be able to push the centre bit back into the injector body. In which case it would be a job for the professionals.

Or obtain a spare set of TBs with injectors from someone on the forum with a spare set ..... like Me

Firestarter · #7 Post by **Firestarter** » Tue Oct 16, 2012 5:20 pm

Flippin eck Andy, I think I'll actually have to use the search function, and find out exactly how many times you've tried to sell those TBs now!

fatboy · #8 Post by **fatboy** » Tue Oct 16, 2012 5:54 pm

I spoke to Griff today, described the fuel supply problems, he said he's fairly sure its electrical, probably one of the two injector relays or an ECU fault ( re needing to run an independant earth to the pump )
I thought the injectors looked pretty much sealed units, Griff didnt think they are servicable,cheaper to replace.
Will get the relays checked tomorrow, the bike has stood for a while so there's a chance of relays stuck closed,equal chance of the ECU being pre menstrual.
Diagnostics will be hellish pricey, may pay me to buy substitue parts

Noted D/R

Falcopops · #9 Post by **Falcopops** » Wed Oct 17, 2012 7:57 am

take the side light out of the headlight and wire it to the injector connector (loom side) and crank on the starter.

The bulb will glow a little if there is a signal getting to the injector. It's pretty feint so the darker the better when you try it.

If there's no glow then the ECU isn't sending a pulse to the injector or there's a fault in the wiring loom (unlikely).

I suppose you could eliminate the wiring loom by figuting out which pins to bridge the bulb across at the ECU.

HTH

fatboy · #10 Post by **fatboy** » Wed Oct 17, 2012 5:46 pm

good tip there falcopops,thanks.
Had a little look/see today, there is power into/out of both injector relays and power to No2 injector with starter button pressed, ran out of daylight to test No 1
Autumn is still the same over here !
Will try starting with injectors connected but removed from TB's, see what happens,yes a crude method compared to diagnostics but cheaper, been quoted £100 just to get the bike to and from garage so I have to do what I can !

#11 Post by **Kwackerz** » Wed Oct 17, 2012 5:50 pm

http://www.ebay.co.uk/itm/APRILIA-RSV-M ... 27cbe2093f

fatboy · #12 Post by **fatboy** » Wed Oct 17, 2012 6:26 pm

Thanks

D-Rider · #13 Post by **D-Rider** » Wed Oct 17, 2012 9:06 pm

Kwackerz wrote:http://www.ebay.co.uk/itm/APRILIA-RSV-M ... 27cbe2093f

Any idea which bike these are for?
I wanted to check whether they were for Gen1Mille/Falco or Gen2 RSVR but the part numbers quoted don't seem to tally with anything.

Confused

#14 Post by **Kwackerz** » Wed Oct 17, 2012 9:18 pm

http://www.apriliaforum.com/forums/show ... lle-R-2001

Theyve quoted manufacturer numbers not Aprilia ones

seems they fit a wide range of applications.. time to start popping bonnets at the local chav fest.. Application : Suzuki, Toyota, Honda, Subaru, Mitsubishi engines

D-Rider · #15 Post by **D-Rider** » Wed Oct 17, 2012 9:24 pm

Kwackerz wrote:http://www.apriliaforum.com/forums/show ... lle-R-2001

Theyve quoted manufacturer numbers not Aprilia ones

seems they fit a wide range of applications.. time to start popping bonnets at the local chav fest.. Application : Suzuki, Toyota, Honda, Subaru, Mitsubishi engines

So, who are these DENSO people