Quote:
Originally Posted by pmckechnie
Could you give me a little history on the car? How long have you had the car? How long have you had the running rich problem? Does it run rich when cold, warm, or both? What kind of plugs did you put in the car?
The low vacuum could be because of the #8 cly problem and/or a vacuum leak.
I don't think the Euro cars had an ECU. There is a 2 terminal coolant sensor in either the left or right rear of the engine but it disables the heater fan until coolant gets to 120(?) deg f. Even if it had an ECU it wouldn't have a temp sensor. The warm up mixture is done by the Warm up compensator or sometimes called a control pressure regulator. It is a small box about 2X3 with 2 fuel lines and 2 wires and maybe 1 or 2 vacuum lines. It is at the left front side of the engine looking at the engine from the front of the car.
Paul
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Hey Paul, I've had the car a couple of years. I bought it locally from a guy here in town. Didn't pay much for the car. I was actually able to drive the car home...LOL...
The first issue was an erratic high idle condition. The car would start fine; however, as the car warmed up, the idle would increase dramatically. IIRC, somewhere around 1.8k to 2k. Found out that the plastic housing on the bottom of the air sensor plate was cracked. Replaced with new and that's when the running rich issue started.
The car has about 150K on the odometer; however, it runs really well with the exception of the rough idle at low rpms and the excessive carbon emissions...
Dizi cap, plugs (Removed W9DC and replaced with Super Plus 7905), and rotor are all Bosch. Haven't done the wires yet but that's next.
Current wires are Bosch;however, I've seen recommendations on Beru and a brand that begins with the letter K...I believe I saw them on the Bird...
My next step is recheck for vacuum leaks...and to see if either the cold start valve, fuel distributor or injectors are leaking...
I'm also looking into how to diagnose a faulty WUR....which you referred to as the control pressure regulator...
Thanks again Paul...
Best Regards,
Todd