Re: 405 runs rough, intermittent

Matt Bolton (matt205@hutch.com.au)
Mon, 22 Sep 1997 09:42:09 +1000

Frank DeWitt wrote:

> Hi
>
> I need help with a 405 (8 valve) that is not running right
>
> It "coughs" or hesitates for just an instant. This gets more and more
>
> frequent and then get's worse and becomes bucking or losing power for
> .1
> sec or so. The effect is less at full power and the car idles
> perfectly.
> Here is the bad part, It goes away! The first time it did it, it
> went
> away for about 2000 mi. Today it did it maybe 4 times in a 150 mi
> trip.
> But only for about 15 mi. total. Today the check engine light came
> on.
> Stayed on for from a few sec. to a few min. I have tried shutting it
> off
> and re starting, let idle, floor it in neutral (to 100RPM short of red
>
> line,) floor it in 3rd to 100 short of red line. None of these seems
> to
> have an effect. Right this min. it runs perfect.
>
> Please tell me yours did that and what was the matter.
>
> Thanks
>

Sounds Like Plugs, Plug Wires or something else in that region.

--
Regards
Matt Bolton
1990 205GTi 1.9
1994 405 MI-16
1990 XU9J4 (the rest is on the way!)
http://www.hutch.com.au/~matt205