6.5k limiter help

[mad in general]

What actually controls the rev limiter?

I understand that it's based on oil temperature.

I had a decent 55 mile drive with a probably average of 30-40 mph and the dash shows temp level sitting bang on centre. No fluctuations.

For some reason in 1st 2nd and 3rd I hit a limiter at 6500 rpm.

I hope that makes sense

Any ideas?

 

[Typhoon]

The rev limiter is controlled within the ECU?

I know the RSTuner can make it higher, by how much I'm not sure.

 

[Chris_Beer]

Sounds like its still in cold map state

Perhaps CTS?

 

[mad in general]

Yeah I guessed that, what I meant was what does the ecu take its signal from to change over to hot map?

 

[Ol’ Tarby]

Its controlled by water temp, not oil.

It'll be the thermostat/temp sensor that needs replacing

 

[mad in general]

Why would the dash show its at the correct temperature if those were faulty?

 

[Ol’ Tarby]

Why would the dash show its at the correct temperature if those were faulty?

French

 

[MarcB]

I would say CTS or Thermostat that is possibly at fault as like its been said it goes by coolant / water temp.

 

[mad in general]

"Because French" is quite accurate, fortunately I have a new thermostat at home to fit. I'll get it fitted over the next couple of days and see how it goes.

Thanks!

 

[MarcB]

"Because French" is quite accurate, fortunately I have a new thermostat at home to fit. I'll get it fitted over the next couple of days and see how it goes.

Thanks!

If you have not bought coolant i can drop you off a bottle, I have 7 5L bottles of Type D sitting here doing nothing and i want to move some of them

 

[Ol’ Tarby]

"Because French" is quite accurate, fortunately I have a new thermostat at home to fit. I'll get it fitted over the next couple of days and see how it goes.

Thanks!

Defo do the CTS at the same time mate

 

[mad in general]

If you have not bought coolant i can drop you off a bottle, I have 7 bottles sitting here doing nothing and i want to move some of them

I appreciate the offer, I do also have 4.5 l of type d here.

Thank you though.

 

[mad in general]

Defo do the CTS at the same time mate

Where is it fitted ? Does it leak coolant when changed?

 

[Ol’ Tarby]

Where is it fitted ? Does it leak coolant when changed?

Its in the thermostat housing IIRC. Never actually changed one myself though mate so I'm not 100%. Have a quick search as I'm sure its been covered a few times

 

[MarcB]

 

[.Stevo.C.]

If you have not bought coolant i can drop you off a bottle, I have 7 5L bottles of Type D sitting here doing nothing and i want to move some of them

I'll take it if it's going. Need some for the Williams.

 

[bloke]

Why would the dash show its at the correct temperature if those were faulty?

dash is only an idiot guide.

 

[karol_SVK]

Why not look via some obd reader to see what temp the ECU sees before you disassemble anything?

 

[Faboka]

Yeah simple obd to monitor ECT will show you if the Ecu thinks it's not up to temp.

 

[mad in general]

So I have a new CTS and thermostat to fit, plenty of coolant also.

Any tips for removing/fitting?

 

[RichieJA]

Type d coolant is the green stuff right ?
I just changed mine and put red oat in have I fucked up ?

 

[mad in general]

Fitted thermostat and CTS.

I was a bit unsure of the process regarding bleeding the Coolant but I warmed it up with the cap off the reservoir, popped the cap on and opened the bleed valve till stream of bloody hot coolant!

Rinse and repeat a couple of times then took it for a drive. Everything seems to be working ok, 7100-200 rpm limiter.
Will check when cold and top up tomorrow.

One question, orange light above the gear shift light. Should this illuminate when I hit the limiter in second and third? Stays lit a couple of seconds then goes out.

Thanks.

 

[Chris_Beer]

Shift light is green and turns off below 7k rpm ish

Sounds like the EML is coming on? Have you got a code reader?

Sounds like the CTS has sorted it. RE: the bleeding procedure, I topped my reservoir tank up, opened the top bolt on the thermostat housing until it ran without bubbling. Topped up again and ran the car until the fan and thermostat opened etc, once car was cold again topped up, and been spot on since.

 

[mad in general]

I have access to a code reader so will get it checked.

Any immediate thoughts?

 

[Laimface]

I had a similar problem, I replaced the coolant sensor and it kept happening. It was actually a duff thermostat, it was stuck open so the engine was too effective at cooling! A replacement thermostat is super cheap and is just literally next to the sensor (the triangle shaped bolt pattern just in front is the housing) so the method is the same.