One for each bank!!!! A lot of V engined cars have two.
A well respected indie advised me to try that first to prove it might be the ECU. What's the risk as I don't want to cause myself a head ache ?
Firing order?
It's all down to production costs,you can accomodate six cylinders in one ecu,but it becomes easier to use two for eight or more,as you use two four cylinder ones,rather than specifically manufacture a unit that will run ten or twelve which is not common.
Ok guys a quick update. She is back up to full health and just had a great drive in her. The culprit was voltage drop down to the battery fitted by the prestige dealer in Egham who I won't name costing the previous owner £435.20 and guess what it was a 2 star Exide Battery with a Euro Car Parts sticker on the side that they probably paid less than £40 for. Can any of these big boys be trusted. Glad to know my ecu's are ok though. Think I'm going to carry on maintaining her myself the same as my 4200.Phil.
Ok guys a quick update. She is back up to full health and just had a great drive in her. The culprit was voltage drop down to the battery fitted by the prestige dealer in Egham who I won't name costing the previous owner £435.20 and guess what it was a 2 star Exide Battery with a Euro Car Parts sticker on the side that they probably paid less than £40 for. Can any of these big boys be trusted. Glad to know my ecu's are ok though. Think I'm going to carry on maintaining her myself the same as my 4200.Phil.