tranmx2 wrote:Your title - Idle cold - . shows 44 C as ECT and EOT with 21 as IAT, rpm at 838.
If the van is in the UK it would show as cold idle the ambient temp which this morning is about 12.6 C. The temps would rise to engine operating temps with the engine running. With the vehicle being driven it can take several mins for operating temp to be reached. The thermostat on mine opens at 88 C. Forscan usually shows 70 to 75 C. That shown on the temp gauge on the consul is a guide only.
An infra red heat gun can show a comparison temp' and can be aimed at different parts of the engine.
If the van is in the Middle East it is likely to be at about 40C ambient temp.
It seems then that the engine had already been running prior to connecting Forscan.
MAP 13.2 psi indicates the van is 883 mtrs above seal level at 839 rpm. The MAP goes up with rpm 1745 shows 20.5 psi MAP.
MAF shows 8.70 g/s at 839 rpm (the 2012 shows 19.59) - I don't know what is the correct reading for the MAF is, info' on the net differs.
Lack of power. There are many reasons for a lack of power. Now complicated by the use of electrics/electronics.
Too much or not enough air. Too much or not enough fuel. Lack of sufficient compression. Restrictions inlet and or exhaust systems. Electrical/electronic - wiring, conectors, pins, corrosion.
The imobiliser can reduce the rpm/power from an engine.
Lack of power can be a bad earth connection a low battery voltage.
The modula system is like a row of dominoes - when one is affected it can result in those nearby/linked being affected.
DTCs - indicate a fault, the likely location of the fault. Fix the fault then delete/reset the DTC.
DPFs can be cleaned they also accumulate ash - see ORiley on youtube.
Forscan see SY Diagnostics and others on youtube. As the bicycle one needs to ride it to know it.
Cyl bal - the term makes not much sense to me as it seems to be related to injector fuel return to tank. The fuel was used to cool the injector, the condition of the injector nozzle could be determined by the amount of fuel returned - leak back test.
One needs to know the location of the vehicle, the expected readings of the sensors, what the readings mean at certain conditions.
yes thats exactly what i was hoping! that somone here might know the expected readings of the sensors and what they mean at certain conditions.
the van is at roughly that altitude hence the map reading. and the ambient temperature is also corect for the south of france this time of year.
perhaps the van was running for 3 or 4 mins while i got the snip images, hence the slightly raised temp.
not sure how the cylinder contribution values are calculated or read myself to be honest, thought they may be of interest to somone here with more expirience, than myself.
still hopeful somone might have advice for me
im not thinking my elevation has anything what so ever to do with my power issues. same issues at sea level in fact!
