Occasional cold start problem

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Relaxification - 20 May 2004 19:13 GMT

1981 SC Targa.

Occasionally (maybe once a week or so) the idle seems a little low
after a cold start. It always starts but I find that I need to give
it a little gas to keep it going. There is sometimes a slight knock
when I do this. Almost immediately (ie once I drive it a few feet)
the idle is fine.

Other than that the car runs like new. Any ideas?

Reply to this Message

Upallnight - 24 May 2004 23:20 GMT

Could be a bad thermo time switch or bad cold start injector. You need the
extra gas from the cold start injector when you first start the engine.
Afterward, the thermo time switch cut off current to the cold start
injector. The Bentley manual haas a procedure for testing both of these
items.

> 1981 SC Targa.
>
[quoted text clipped - 5 lines]
>
> Other than that the car runs like new. Any ideas?

Reply to this Message

E Brown - 25 May 2004 01:18 GMT

>1981 SC Targa.
>
[quoted text clipped - 5 lines]
>
>Other than that the car runs like new. Any ideas?

There's a British magazine called Practical Classics, and the
current US edition has a write-up on troubleshooting CIS fuel systems.
Check it out - it's very helpful, imo.
Emanuel

Signature

1983 Porsche 911
1983 Porsche 944

Reply to this Message