Hi
This is a rarther complex problem you have here, because all the facts are based on what the workshop told you. So the only thing i can really offer you here is my opinion.
1- When replacing the spark plugs on a vehicle it makes common sense to replace all 6 spark plugs instead of just the one or 2 faulty ones, in the regard of preventative maintanance it would have been best to replace all six from the start. especially if they where starting to act up.
2- Cylinder six delivering 15 bar i dont understand because your spark and ecu is not measured with pressure it either delivers spark or not, in some instances they coils or spark plugs may misfire under load but have nothing to do with fuel pressure or compression.
3- For the workshop to blow coil number six is highly unlikley if it did blow it could not really have been their fault is was most probably faulty in anyway. It is however very comon for a coil to be damaged by a faulty or incorrect spark plug. Due to the spark not being emmitted through the spark plug the coils can build up residual voltage and become damaged.
4- For the ECU to all of a suddon become faulty is also alarming to me, the freelander ECU's are known to be sensitive but i have never heard of one just becoming faulty. Damage to an ECU is normaly caused by jump starting, alternator over charging, loose battery terminals or something else causing a voltage spike.
Judging by the currency you are refering to you are from South Africa as am I feel free to drop me a mail or a phone call and i can try assist you from there.
Regards Kenneth Ella [email protected] 083 756 6531
Testimonial: "thanks much - the response time to my question very good - and the quality of Kenneth's knowledge give me a sense of being more incontrol of what's up"
My freelander is consumimng a lot of petrol
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