running too lean

[palingneus]

hi there,

my clio 172 is running too lean on higher rpm's 4000+.
I have sent the datalogs to Henk (fastchip), he sais there is something wrong with the fuelsupply.

new fuelfilter installed , no airleaks on the manifold, fuelpressure on idle is 2,5bar and vacuumhose disconnected 3,5bars.

could it be the clogged injectors? fuelpump?
I am going a little crazy, I don't want to replace everything.

somebody with experience with injectorcleaning? how can I get the little filterscreens out of the injectors?

thanks,
arjan

 

[MK3 Dan]

I clean injectors regularly in work! Could do yours if you wanted?

 

[palingneus]

thanks for the offer, but I live in the netherlands.
there is a company nearby that can do them, but is cleaning the answer of my problems???
I tried to test them myself with compressed air and some fuel in it and 12V on them.
I saw a nice jet, but that was on 7bars...

 

[MK3 Dan]

It maybe, but I don't know much about renaults!

Have you tried taking the fuel rail and injectors off the car and trying to start it? Should show you the spray patterns then?

 

[palingneus]

have to do something, i'll remove the injectors and try to remove the little filters inside, and clean them ultrasonic.
maybe that will do the job.

thanks for replying