Re: Hesitation and ISV

[Andrew Duane USG <duane@hunch.zk3.dec.com>]

Hairy green toads from Mars made ozitzmann@atmi.com say:

> My '90 200Q has a hesitation at part throttle (less than .7 Bar) when the engine
> is at operating temperature.  If I am driving at constant speed, the car feels
> like a bucking horse.  The hesitation is in a very rhythmic manner (about 1
> every second) and feels like the engine has shut down.  If I let off the gas or
> give it more, the hesitation goes away.  I have disconnected the ISV and the
> problem is gone.  The car idles very well with the ISV connected and not well
> with it disconnected, so I don't think the ISV is the problem.   I have cleaned
> it, but that made no difference.

Sounds more like a flaky O2 sensor than an ISV.

-- 

Andrew L. Duane (JOT-7)			duane@zk3.dec.com
Compaq Computer Corporation		(603)-884-1294
110 Spit Brook Road
M/S ZKO3-3/U14
Nashua, NH    03062-2698

Only my cat shares my opinions, and she's too psychotic to express it