alfa 147 1.6 twinspark 120cv

[cjack]

I have a doubt that afflicts me: I'm working a bit of time on this alpha 1600ts but I can not figure out why the fuel mixture leans to the high rpm(see attachment)....
from the original made him even more...
I forgot to tap some strategy-map?

[jolidj]

hello. nn you have touched on different maps , maybe x choice. you smagrisce x for the map to full load you smagrito.su this machine at full load you need to remove x-values grease.

[cjack]

If you mean the lambdats map component protection you have smagrita, but ? anyway, very fat... And then does not intervene if they are not exceeded 950 degrees ippotizzati strategy brow for the control of the temperature of the exhaust gas... Also from the original smagrisce, and makes it even more... Now will have to? try to disable the control of the catalyst( and the 2nd lambda) to see if they're fat... Maybe the catalozzatore ? a little spoiled and the strategy tries to fix it...

[jolidj]

if smagrisce you have to check the mass air flow sensor. on a smagriva so much that the camera seemed that pierced the pistons from one moment to the other.

[cjack]

Ok... Controller? also...


with regard to the carburetor I have practically solved by eliminating the control of the second lambda (valley of the catalyst), now smagrisce more...

[jolidj]

very good. it's better by eliminating the sondo or above loses??

[cjack]

's better... now the fuel mixture remains in the right place...
for? testing the mass air flow sensor I noticed that it's not ? their linear signal... that is normal?

[jolidj]

no . according to me, and to change . maybe if you find the right one to try and see the differences .

[cjack]

prover? to clean it... if I find another one to try would be perfect...
that machine ? always been little, it seemed like a 105hp also new was 120... maybe ? defective from birth that mass air flow sensor...:-)

[jolidj]

as I said , for the fault of the mass air flow sensor x little I opened the mechanics . after the change, the machine goes , nice and clean . only that I couldn't anticipate much if nn stinggggg...
a maximum of 5 degrees .

[cjack]

Changed mass air flow sensor but the log is practically the same... it will be? normal for this type of mass air flow sensor... Anyway the car is good on petrol.... Lpg lose a few shots from 1300 to 2200 under strain(top gear)
Prover? to set best lpg(brc)

[voglioimparare]

are not excessive-5 degrees ? I had a 1.8 ts and I have pushed more than 3 degrees for fear of incurring detonation, and..***** and measure the heartbeat?

[voglioimparare]

another thing I noticed ,why in the "advance correction f pair" you have given the increases a little here a little? I would like to understand also I the logic of the software,as this ecu I find it hard to understand how it works...thanks;)

[cjack]

I gave 4-5 degrees at the end...Then it depends on where they're from...If it beats the feel to the ear low... To high ? it is more difficult to notice....( I'm wary of the advances)
Ideal would be to be able to use the knock sensor on the car, but I don't know how to do...

[voglioimparare]

I gave 4-5 degrees at the end...Then it depends on where they're from...If it beats the feel to the ear low... To high ? it is more difficult to notice....( I'm wary of the advances)
Ideal would be to be able to use the knock sensor on the car, but I don't know how to do...


in theory, when the knock sensor warns the beat precisely cut in the obvious way, the advance of..well, you should have a pair of headphones and hear in real time if you feel something...in the rehearsal room do so at least...I don't know if on the road, and one thing feasible... the maps out of the driver what are they? thanks a lot topic very interesting!

[cjack]

A map ? lim torque, then I changed to 2 maps relating to the control of the lambda( lamda request and lambda component protection) ... I advise You to get a damos for work on these ecu...

[voglioimparare]

A map ? lim torque, then I changed to 2 maps relating to the control of the lambda( lamda request and lambda component protection) ... I advise You to get a damos for work on these ecu...

still thanks a lot! I get the damos somewhere...you have been really kind! now nn is to work out and implement it;)