Engine running rough

zoomzoom · Postby **zoomzoom** » Thu Aug 30, 2007 10:32 pm

My engine seems to be runnig a little rouch, and ideas?

sounds like this

Tim

Boags · Postby **Boags** » Thu Aug 30, 2007 10:44 pm

New ECU?

zoomzoom · Postby **zoomzoom** » Thu Aug 30, 2007 10:45 pm

not yet

ampz · Postby **ampz** » Thu Aug 30, 2007 10:56 pm

13B PP?

zoomzoom · Postby **zoomzoom** » Thu Aug 30, 2007 10:59 pm

Nup, just the 1600

JBT · Postby **JBT** » Thu Aug 30, 2007 11:17 pm

Cam(s)?

Boags · Postby **Boags** » Thu Aug 30, 2007 11:19 pm

JBT wrote:Cam(s)?

zoomzoom · Postby **zoomzoom** » Thu Aug 30, 2007 11:20 pm

Boags'MX5 wrote:
JBT wrote:Cam(s)?

JBT · Postby **JBT** » Thu Aug 30, 2007 11:21 pm

Best come out to track day and show us the difference then

zoomzoom · Postby **zoomzoom** » Thu Aug 30, 2007 11:23 pm

I would if I hadn't spent all my money on my car

JBT · Postby **JBT** » Thu Aug 30, 2007 11:24 pm

silvermiata · Postby **silvermiata** » Fri Aug 31, 2007 12:02 am

that sounds like a ls1 v8

is it a monsta miata :?:

Bevan · Postby **Bevan** » Fri Aug 31, 2007 12:29 pm

Holy crap! A lumpy MX5! That sounds wicked. :twisted:

Fuzzlet · Postby **Fuzzlet** » Fri Aug 31, 2007 12:59 pm

Actually I was gonna say it sounded like a panzer tank before it hit puberty.....

Mr Starlet · Postby **Mr Starlet** » Fri Aug 31, 2007 4:00 pm

zoomzoom wrote:My engine seems to be runnig a little rouch, and ideas?

sounds like this

Tim

That sounded very much like my other MX5 at idle, but how is it at say over 1k rpm? drives fine but shakes abit at idle? even till now I can't work out what it was, possibly idle speed controller (ISC) faulty...too little/much air and ECU trying to correct that's why you get the oscillation? whatever it is that's causing the ECU to correct hence over correct and so oscillation...O2 sensor?, something in the intake path/loop/circuit? vacuum hoses?...rough timing? Mind boggling

Good luck Tim.

Cheers
Minh