159 2.4 20007 plate
19,500 DPF/EGR by
AO Silver Member
Join Date: May 2009
Location: United Kingdom
Lambda or MAF but you are guessing and replacing expensive parts (Alfas usually play up terribly if you don't fit genuine and expensive Bosch sensors.) You need to read the fault codes. Get a free copy of FiatECUscan (FES) a cheap KKL / USB lead (<£10) from ebay and read the codes. The free software will even let you erase (reset) the fault codes and turn of the light.
The connector on the car is in the fuse box. One crosshead screw either side of the steering column and the panel hinges down revealing the fuses and connector.
The widest part of the multi pin connector goes at the bottom.
You may have a problem connecting to the car, it may be the USB driver but unlikely, more likely, the connectors are a little corroded. Unplug and replug the lead a few times will usually suffice to clean the connectors. The connector was VERY tight on my son's 147 and took a bit of force to push home. A bit scary when you can't easily see what you are doing as the plug is tucked up under the dash and slightly obscured.
NOTE: you do not need any special pin configuration or adaptor leads to connect to the engine ECU the single KKL / USB lead will suffice. The FiatECUScan website is quite confusing in this respect - perhaps it's just me but it threw me.
Last edited by kandlbarrett; 28-12-11 at 23:27.