Pls help rough idle and code A2 453, 543

oh-la-la · Post by **oh-la-la** » 21 Jan 2011, 18:57

Hi guys
I've been having rough idle some for about 10 sec after start up the engine but the car still runs fine. CEL still not on at this point but shown code A2 453 Misfire cylinder 3, 543 Misfire at least one cylinder. I inspected the spark plug and it looks good. Could it be distributor cap/ rotor?
Thx for all help

Post by **Ozark Lee** » 21 Jan 2011, 19:13

It could be a number of things. Cap, rotor, a bad plug wire, a clogged injector, etc. When was the last tuneup with new ignition parts and what did you use for parts?

...Lee

oh-la-la · Post by **oh-la-la** » 21 Jan 2011, 19:36

Ozark Lee wrote:It could be a number of things. Cap, rotor, a bad plug wire, a clogged injector, etc. When was the last tuneup with new ignition parts and what did you use for parts?

...Lee

Hi Lee,
I've completed stage 0 but just only distributor cap, rotor and wires that have not changed since the car had been running fine. I'm about to order them but just dont wanna wait for the shipping, my local Kragen has BWD brand in stock.. Can I use them or should I only get Bosch?
Thanks for helps

Post by **Ozark Lee** » 21 Jan 2011, 20:22

Bosch for the cap and rotor are just fine but their plug wires suck. The only wires I have ever used that work are the OEM Bougicord wires and they are actually a couple of bucks cheaper than the Bosch wires. IPD wires might be OK as well but I have never used them.

I thought that the Bosch Plug wires would be an upgrade but sadly it is not the case, my '94 would barely run a couple of weeks after I put them on but I temper that with the fact that I also put in a fresh set of Bosch Platinum +2 spark plugs which was also a huge mistake.

...Lee

TurboWagon · Post by **TurboWagon** » 21 Jan 2011, 22:16

I have Bosch wires on my 94 850 and I have properly gapped Platinum plugs, the thing runs like a dream, without any ignition issues.