Mercedes 'A' A160 (168)- Poor running/stalling when coldArchived Message
Posted by Nick Bell on March 10, 2008, 9:55 pm
Hi All, Cut out at idle, and hard to keep going when cold. When warm much better, and emissions good. Only codes P0170-lambda control. Live data mainly OK. Lambda control before KAT -183% and then -176% later when warmer. Guess this is some kind of fuel trim figure.
MAF was eventually 6.9kg/hr with FI pulse duration of 3.6 mS. Bosch ESItronic suggested MAF of 7.5 to 10.5 kg/hr @ idle.
The ECU has already been sent away and the MAF has apparently been replaced.
Do these figures look reasonable, and is there anything else I should be looking at please?