still lean

vtecmangr · Post by **vtecmangr** » Thu Mar 26, 2009 1:45 pm

i am having some problems with my bin running ectune on a turbo gsr with pistons rod combo my car is leaning out after 0,6 bar turbo is master power st70 p trim in70 ex96ar 650 siemens deka walbro 255 bennen fuel rail distributor is brand new ordered some 650 presicion injectors but xenocron send me some siemens deka the problem is that with crome gold bin tha car is running very good,no leaning issues so i am guesing i do something wrong i will order some 1000cc injectors just to try but please see in my map if there is something i didnt get runs in idle very well just all the map is rich just when i hit 0.6 it gets lean and whatever i do to the boost portion place this situation dont change thanks in advance

xenocron · Post by **xenocron** » Thu Mar 26, 2009 5:03 pm

vtecmangr wrote: ordered some 650 presicion injectors but xenocron send me some siemens deka

just so you are aware, the Precision 650cc (High Imp) are Seimens injectors

Hop back online, Im on MSN right now

vtecmangr · Post by **vtecmangr** » Thu Mar 26, 2009 6:21 pm

xenocron wrote:
vtecmangr wrote: ordered some 650 presicion injectors but xenocron send me some siemens deka
just so you are aware, the Precision 650cc (High Imp) are Seimens injectors Hop back online, Im on MSN right now

i didnt said that the injectors are the problem

if it was then the car wouldnt run ok in crome just i think is my fault and my new injectors that i will buy will be from you

vtecmangr · Post by **vtecmangr** » Wed Apr 08, 2009 9:19 pm

Post by **calvin** » Thu Apr 09, 2009 9:27 am

first of all. you have fuel values of 6000 FV. that is not good. I would recommend starting with a new map. tuning the car below boost esp. column 10 and run the boost table setup fuel 120% over it.

vtecmangr · Post by **vtecmangr** » Thu Apr 09, 2009 1:25 pm

thanks calvin for the reply fuel values were maxed out,just to ensure that i will not have lean issues through boosting and protect the engine,i used 180% fuel next week when i return home and can try i will try your map and will use the new injectors i gave ordered

Post by **Gaskleppie** » Fri Apr 10, 2009 1:18 am

Still lean? Do you have a B&M fuel regulator? I have seen at least 10 of them broken with these kinds of problems as a result.

vtecmangr · Post by **vtecmangr** » Fri Apr 10, 2009 4:10 am

Gaskleppie wrote:Still lean? Do you have a B&M fuel regulator? I have seen at least 10 of them broken with these kinds of problems as a result.

no,no BM fuel regulator,so yes even with this amount of fuel was lean also the fuel pressure at idle is 4 bar and at wot 5 bar i didnt try the map cause i dont have the car right now living in a diferent country i will also try a new wb with the new rc's that i bought

Post by **calvin** » Sat Apr 11, 2009 1:56 pm

Only thing i think of. Fuel pump maybe a Chinese Walbro? Or a broken FPR. I think fuel pressure is dropping at certain boost. e.g. Base fuel Pres+Amt(full throttle) Press+boost so 42 base pres psi with hose disconnect 40 pres psi with hose connected(idle) 42+7(psi boost) = 49 psi. Something most go wrong. Maybe run a line from gauge(inside car) to fuel filter to monitor FPR under boost.

vtecmangr · Post by **vtecmangr** » Sun Apr 12, 2009 3:18 pm

calvin wrote:Only thing i think of. Fuel pump maybe a Chinese Walbro? Or a broken FPR. I think fuel pressure is dropping at certain boost. e.g. Base fuel Pres+Amt(full throttle) Press+boost so 42 base pres psi with hose disconnect 40 pres psi with hose connected(idle) 42+7(psi boost) = 49 psi. Something most go wrong. Maybe run a line from gauge(inside car) to fuel filter to monitor FPR under boost.

i will try this aso and bring a fp gauge into the cabin also the walbro is boughted from chris so i dont think its a chinese one as soon as i go back to the car i will try all these you have posted thanks

JaredKaragen · Post by **JaredKaragen** » Sun Apr 12, 2009 5:22 pm

excessive richness will cause a lean condition; because an o2 sensor reads oxygen, not unburnt fuel

In a sense think of it reading unburnt oxygen =)

vtecmangr · Post by **vtecmangr** » Sun Apr 12, 2009 5:39 pm

JaredKaragen wrote:excessive richness will cause a lean condition; because an o2 sensor reads oxygen, not unburnt fuel In a sense think of it reading unburnt oxygen =)

thanks alan i will also have this in mind, trying to figure out again what hapends

Post by **nate** » Sun Apr 12, 2009 8:36 pm

What do the plugs looks like

vtecmangr · Post by **vtecmangr** » Sun Apr 12, 2009 10:55 pm

the plugs were brown

elevation · Post by **elevation** » Mon Apr 13, 2009 9:52 am

lots of times the gauge of wire used @pump come into play.

eCtune

still lean

still lean

Re: still lean

Re: still lean