Helllpppp! lost power idles real bad

[matt p]

Dude the map sensor is the little black box attached to the bulk head via a funny L shaped bracket.

Its got a hose attcahed to the bottom with a small round plastic part about an inch from it and this leads to the throttle body.

Im off to the workshop in a bit and ill get a picture and post it up if your still stuck.

Regards

Matt

[trotter]

Will usually sound like a bag of spanners when it\'s trying to run.

Problems starting from cold.

These are the usual main two.

Oh, clouds and clouds of smoke as well is usually a bad sign - but this can be down to several things, not just a blown rotor.

As Prof says - whip out the EGI fuse and plugs and listen out for the \'whooshes\', if you are even SLIGHTLY| concerned that you\'ve chipped or bust a seal or two think VERY carefully about starting it proper. If you have a busted tip it could not only gouge out the rotor housings, but the turbo(s) may also have a chew on it if it any debris gets blasted out the block - means that the upcoming rebuild is all the more expensive!!

hth

graeme

[MARKPRIOR]

idle vid

holds vac ok

http://www.youtube.com/watch?v=gdH8gUiKEXM

[MARKPRIOR]

checked the MAP sensor seems fine

[mx1311]

have you messed with the boost at all?

[trotter]

Is the fuel tank / pump ok?

If you have a really bad smell of fuel and rough running there could be a leak which is starving the engine?

[MARKPRIOR]

not messed with the boost its set to 1 bar, petrol smell comes from the exhaust along with some smoke blue\'ish in colour

[HaywardRotary]

You probably have chipped a tip seal which gives poor idle,but reasonable cruise and then poor on boost response.
Compression test will show this.
Regards
Carl

[Prof]

well - rotaries always run rich - but it could just be misfiring - I\'d take a gander at the plugs for sure.  A little blue smoke on start up isn\'t a problem - particulary if it isn\'t firing properly

[Kash_]

Try taking out your plugs and check to see if they are okay...

The Map sensor is pictured below. There should be a pipe going into the bottom of it, make sure it hasn\'t come out or have a split in it.

[neil_jdmr]

Best off getting yourself a compression test really mark then at least the bad stuff can be put to rest and concentrate on fixing it without the dread of big money hanging over you.
 
You have only had the car 5 mins mate, really feel for you.
Hope its nothing serious.

[MARKPRIOR]

aye going to do a compression test monday

whats the case if it is a chiped tip?

[trotter]

Depends on what else it\'s done on the way out.....

If you\'re VERY lucky, it might just be an engine out, strip, replace one tip job.

If the chip didn\'t disintegrate and stayed as a solid bit it may have gouged the rotor housing which means a new one.

Worst case scenario, it has been spat out the exhaust manifold which means it\'s probably chewed up the turbine blades in the turbo(s).

BUT before you start thinking the worst, get the comp. test done!! It may be nothing serious and just a fuelling problem of some kind.

[MARKPRIOR]

Will do, going to do the compression test saturday whats the psi/bar that i should have across the range?

mrs just said if its proper ......ed i can sell it and buy a c6 corvette lol

last quick question if i melted a plug would i get these symptoms

[trotter]

A ruined plug would make it run horrible. You wouldnt be burning all the fuel/air mixture cleanly so would explain the smell in the exhaust. But in all fairness mines smells horrible anyway!!

bar (psi):

under 5 (70): ruined - bin it and start again
5-6 (70-90): think about a rebuild shortly
6-7 (90-100): no problems here
over 8 (116): essentially a \'brand new\' engine\'s figures

(Ive rounded the psi figures a bit.)

Also, you don\'t want to see just high figures, you want a nice even spread across all three points on each rotor.

good example:

6.0 6.1 6.3 front
6.4 6.2 6.0 rear

bad example:

6.0 5.4 6.3 front
6.4 6.2 6.0 rear

this shows that one seal is knackered - if you\'ve chipped one expect to see something like this.

HTH

graeme