MembersPage/VolvoS (2014-08-06 08:48:01)

Volvo S70 T5 Turbo

Motronic 4.4 Ecu 19T 21psi cca 340Le

Engine: B5244T LPT 9:0:1

2445 ccm

5 cyl

Na camst

Rs500 intercooler

S60R Fuel injectors 42lb

Walbro 255 Lph pump

TD04HL-19T Turbo

3" exhaust

Msd ignition(distributor)


New Project: 1998 Volvo S70 B5244T + vems V3

Engine: B5244T LPT 9:0:1

2445 ccm

5 cyl

Na camst

Rs500 intercooler

Siemens Deka 630

Walbro 255 Lph pump

TD05HL-06 20G hibrid

3" exhaust

Volvo T5 COP's Bosch 0221604001


Inline 5-cylinder, sequential ignition with camsync

Primary trigger: 60-2 w/ VR sensor.

Secondary trigger: Single tooth w/ Hall sensor.

The rising edge of the cam wheel hits the sensor after cylinder three fires and before cylinder one does.

Firing order is 1-2-4-5-3.

Ign. outputs will connect as follows (for 2+6 igbt configuration, + PNP transistor

Ignition outputs


Sensor:

TPS is standard Volvo S70 , 3 pin.

-Standart Vr sensor 2 pin

-Hall sensor 3 pin

-Bmw Mat sensor

-2 Bosch Lamda

-IAC 3-pin


Coil pin-out:S70 T5 Cop

Pin---Designation

1 Trigger

2 Not Used

3 Ground

4 +12v


ign TDC-delay (primary trigger settings) is too low !

Correction hint: 144+20=164 crankdeg = 15*6 + 74


Validation shows possible problem

With hall dirac filter the problem shows less times


Benchtest

We applied some changes to the config, because "TDC after trigger" = 20 crankdeg is not a good setting (see above ... Since we changed 144 crankdegrees, you might need to rotate the ignoutput sequence by 1 event, strobing will show it).

After that, we benchtested the config.

We benchtested the ~160 kPa and 3000 .. 7000 RPM range most extensively where your cylinder seems to misfire. The ignition and injection outputs fired properly.

Test config: http://www.vems.hu/files/VolvoS/tested-v3.3_u004521-A-2013.05.06-12.


http://data.hu/get/6564404/v3.3_u003132-2013.05.21-00.44.37.vemslog

http://data.hu/get/6564478/v3.3_u003132-A-2013.05.21-00.46.20korrekciofentgyujtas.vemscfg

Hi Marcell,

could you please take a look on my log file?

On WOT runs from 1st to 4th everything is fine, but in 5th gear @ 3000 rpm the engine misfires => lambda goes lean (this is a consequence of misfire: unburnt oxygen in the exhaust), stutters.

The other problem is the startup. Doesn't matter if the engine is hot or cold I have to crank the for a long time to start. What could be the problem?

Sziasztok

Kis segítségre lenne szükségem.

Hiba : kis alapjárat ingadozás 100rpm egyenletlen járás.. Lambda 1.00 ha dúsítom kb 0,85re egyenletes alapjárat minden tökéletes.

Teljesen általános jelenség 1.5msec injector pulsewidth alatt:

Üzemanyag problémára gondolok .injektorok tesztelve egyenletes porlasztás, mennyiség megegyező mind az 5 hengerre .

Van e valami tippetek mi okozhatja a problémát?

Köszönöm


New project: TODO: move it to different page. Mixing different engines on same page is explicitely not supported, because very confusing => causes misunderstanding and costs extra time for developers

Volvo 2,5 RNC DUAL VVT


Reviewed vemscfg/vemslog clt ign adjust table was not reasonably filled, adjusted config available here:

To allow further timing and trigger verification please provide a triggerlog of engine cranking 8-10 seconds without IGN and INJ fuse - DB