I put in a request for wiring diagrams for this vehicle but might not get a response until tomorrow.
But here is a guide to cylinder misfires in the meantime.
The Check engine light flashing means that the cylinder misfires are bad enough to damage the Catalytic Converter. If it something that is coming and going like that, it can be a wiring issue, such as a bad ground, or connector that is not fully seated. The Grounds are going to be wiring that is bolted directly to the engine block or the body of the vehicle, also there is probably a battery Ground to the Body near the battery negative cable, make sure they are all tight, not rusted or corroded in any way. Did you buy gas (petro) at a different station recently or anything like that? Bad gas or too much Alcohol content can cause issues like this that will come and go. I don't know what the gas is like in the UK, but here we have regular gas that has up to 10 percent alcohol content, and some Flex fuel vehicles which run on a higher alcohol mixture. Do you have your own scan tool?
https://www.2carpros.com/articles/engine-misfires-or-runs-rough
Sunday, May 21st, 2023 AT 1:09 PM