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Checked this morning at 13C (55F) and it basically performed similar to yours - 2200 at start, 5-8 secs to get to 1600. It maybe ok then if it's performing similarly to yours. I guess it is high for what appears as a long period of time due to our extreme winters here. Will talk to a Mazda mechanic ...

Thanx IanL, you may be onto something here. Will dig into the chilton's manual to identify the location of all these components and get a better feel of the operation of that circuit. I'll post back my results on my progress.

Everything seems to be working normally and there aren't any error codes indicating any faulty sensors. For Winterpeg when it's -40 I could see that 2500 rpm is normal (although I am used to about 1500 for other vehicles- Camry and Honda civic). This speed occurs year round regardless of temp (even ...

1.8 L V6. On a cold start the engine idles at about 2500 rpm and then gradually drops down to normal idle speed when warmed up. Everything works fine except for the startup. What is the procedure for adjusting the cold high speed idle?

Originally posted by masonholmes:
Oooh, somthin I forgot to say.. You replaced the rotor/cap, but this may be early warning signs of the distributor going out. There's a specific part in them that fails due to excessive heat, over time - the ignitor module. It has given these distributors a rep ...

It's a possibility that it could be the igniter module however I am going to do more digging before I spend more money which is very easy to do on the pricey parts for these cars. Reading at another site for Probe the engine code 12 points out that the TPS could be the culprit. I am not sure if I ...

Problem started with this severe cold weather. The spark plug wells filled with oil so I had the seals replaced. I replaced the pcv valve, distributor cap, spark plugs and wires because it was needed anyway. At high speed engine works fine but when I rev from idle it stumbles and hesitates until it ...