850 T-5R 5.5k rpm rev limiter?

**Shinsplintz 101** · Sunday 23rd October 2016, 09:33

Originally Posted by leet5r

my car never had any boost isuses , ran 22psi and a 14,3 @101 at York with the 5.5rpm

Boost issue/rev issue....whatever....it had a problem as you stated above....the op asked for a pointer at who'd fixed it. Simple as that.

**leet5r** · Sunday 23rd October 2016, 11:28

Originally Posted by Shinsplintz 101

Boost issue/rev issue....whatever....it had a problem as you stated above....the op asked for a pointer at who'd fixed it. Simple as that.

yes it is simple as that , my car never had a boost issue simple as that , doubt the boost issue with the car is causing it not to rev past 5.5k .
and I wasn't having a go in the previous post simple as that

**leet5r** · Sunday 23rd October 2016, 11:29

could be down to the ecu , or the wrong clocks could be fitted , I never managed to find the cause so cant help you more sorry

**Craigyt** · Sunday 23rd October 2016, 13:38

How do i check the ecu? Will the chip have a code on it?

**MoleT-5R** · Sunday 23rd October 2016, 14:06

Originally Posted by Craigyt

How do i check the ecu? Will the chip have a code on it?

swap it for another known one to try it and see if the problem still exists

**Craigyt** · Sunday 23rd October 2016, 18:36

Anyone got a known good one i can try?

**Craigyt** · Monday 24th October 2016, 20:28

Im only seeing 18-21mpg, there or there abouts! Thats steady driving aswel. Should this be cause for concern other than for my wallet!

I checked all boost hoses, inlet, throttle body etc etc but still nothing! If the engine is redhot and you stick your head down the back over the exhaust manifold, rev the car a bit you can smell exhaust fumes, like proper fumes not fumes that have been through a cat converter!

Leaking manifold gasket? Cracked manifold?

This wouldnt stop the car from revving past 5500rpm though, but that is really starting to wind me up, i need it sorting!! Is there any tell tale digns that the ecu has been swapped or played with?

**Doingitsideways** · Monday 24th October 2016, 21:27

If the ecu has never been touched, there will be a tamperproof screw/bolt holding the lid on the box under the bonnet.

Still certainly sounds vac related to me.
Sounds like it's overfuelling to compensate.
Have you tried spraying carb cleaner or similar around all your inlet/boost/vac hoses while the engine idles?
If the idle changes at any point, you have a leak as it's sucking it in.

You could have a cracked manifold I suppose, but I wouldn't have thought that would stop it booting/revving properly until it had pretty much snapped!

**Craigyt** · Monday 24th October 2016, 21:58

Yeah. I have read about doing a stage 0 on the car but it was serviced and belts etc done before it was fitted into the car, but, the service light is still flashing at me!

Im thinking its vac related aswel, iv got some pipes behind the headlights in that area that arent connected. Are the headlight washers vacuum activated or could this be my problem?

**Doingitsideways** · Tuesday 25th October 2016, 11:24

No.
Headlight wipers have motors.
The lines you're seeing may be from the washers on the arms.

Try the carb cleaner trick around every joint you can find on the inlet side of things, including the manifold-head.