Miata Turbo Forum - Boost cars, acquire cats.

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-   Engine Performance (https://www.miataturbo.net/engine-performance-56/)
-   -   5000 RPM's at start!? (https://www.miataturbo.net/engine-performance-56/5000-rpms-start-69751/)

Kinavo 12-05-2012 09:22 AM

Thanks for all of the input guys. I Will check everything you guys mentioned this weekend.
Regarding the TB shaft pivot points, I did spray them down with some brake cleaner but it I didn't have this issue the first time I got the car running although I still had a relatively high idle (1300 rpm).

I blocked off both Egr holes on the intake manifold.

If I don't have a leak down tester can I just use a boost leak tester to pressurize the system?

99Racer 12-05-2012 10:02 PM

.

If I don't have a leak down tester can I just use a boost leak tester to pressurize the system?

Booster hose fitting or manifold side of PCV would both work. Just make sure the air line pressure regular is turned to 10 or 20 psi or less. You just need to listen for air flow and really don't need much pressure.

flounder 12-06-2012 06:14 PM

If you have access to a smoke machine, that would be your best bet. Maybe they rent them?

aaronc7 12-07-2012 01:12 PM

Just wanted to add, 99 00 idle valve all the way open I saw high 4000s, close to 5k idle. Would rule that out if you haven't already.

Kinavo 12-15-2012 03:43 PM

1 Attachment(s)
I dont know how I missed this. SMH BUT I am sooo relieved to have figured out the cause. Turns out I ordered the wrong year gasket.

https://www.miataturbo.net/attachmen...ine=1355604224

240_to_miata 12-15-2012 04:31 PM

Same issue I had.

Thank god I am no longer the only retard on this forum.

Joe Perez 12-15-2012 11:02 PM


Originally Posted by Joe Perez (Post 955113)
Manifold?


Originally Posted by Joe Perez (Post 955119)
To get to 5,000 RPM, we are looking for LARGE leaks. Bigger than one of the small vacuum hoses or a tiny little gap around the EGR blockoff.


Originally Posted by Joe Perez (Post 955276)
Maybe something got between the intake manifold and the head.


Originally Posted by Kinavo (Post 959507)


Heh. :D

Glad you finally found the culprit.

Kinavo 12-16-2012 10:11 AM

I was really hoping it wasnt the IM gasket but taking the manifold off wasnt as bad as I thought. I started the boost leak tester and there was absolutely no pressure building up. The other test I did was closing the throttle body and idle screw and the car still started and revved up to 4k. That's when I knew.

Braineack 12-16-2012 11:44 AM


Originally Posted by 240_to_miata (Post 959514)
Thank god I am no longer the only retard on this forum.


post of the week.

Faeflora 12-16-2012 01:30 PM

Why idle at 5000rpm?

Because racecar!!!!!!!

Kinavo 12-16-2012 01:32 PM


Originally Posted by Braineack (Post 959699)
post of the week.


x2

nwNAMiata 12-17-2012 12:15 AM

hey, at least it was an error by the mechanic:fael:

Kinavo 12-22-2012 05:22 PM

Car started fine today and idled at ~1500rpm for about 10 seconds. Thank you miataturbo folks. Still need to set the base timing and fix a coolant leak coming from the metal pipe coming from the heater core into the water pump outlet.

The real problem now is that Tunerstudio wont connect to the ECU all of a sudden. wth!


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