Fiat Ducato 2.3 JTD - 2007 88kw

by **Satepek** » Sun Jul 17, 2022 5:57 pm

Hi Guys,
i have issue with big smoke on ducato 2.3JTD 88kw

Attached files
- Original
- chip + constumption optimalization + EGR off + limiter off

Could you check it, because there is big different between MAF measured and requested.

Engine after rebuild - new high preasure pump, all injectors, all sensors on engine, new fuel regulator, new fuel rail sensor, new MAF. Egr switch disconnected + vacuum disconected.

by **ceecee** » Mon Jul 18, 2022 1:26 pm

MAF difference is absolutly normal because EGR closed.
Smoke because some remap data is wrong, log on road when you get smoke (fuel, boost, maf etc).

by **Satepek** » Mon Jul 18, 2022 6:57 pm

I mean that bigger MAF is causing bigger mg of fuels because its also calculating with egr + this value and adding addtional mg of fuel to this value..

by **ceecee** » Mon Jul 18, 2022 7:25 pm

Nop, it calcs fuel limit from actual MAF, not desired. Smoke is from other map mod or engine issue.

by **Satepek** » Thu Jul 21, 2022 8:29 pm

Crazy..
maybe i can check hoses to IC and IC... OR do you have any idea? Because everything connected with fuel already replaced..

by **ceecee** » Thu Jul 21, 2022 8:39 pm

Yes, hoses between turbo and intake could be reason.
For logging you need to log: fuel main mm3, injection main duration, boost, maf... FiatEcuScan/MultiEcuScan is the best.