Car won't stop revving

[Buddha123]

Just had the garage fit a new starter motor and add an extra mount for my back box as it was rattling the whole car. Now I have noticed this only marginally in the past that sometimes when driving my car would rev a little bit nothing amazing when I drive or am in idle. Since having it in the garage I will pull up to a roundabout and the throttle is stuck on never pushing more then 3000rpm. I took a look at the throttle cable and it seemed fine if anything a little slack and I quickly took the air intake thingy off where my samco breathing hose goes too and gave it a clean and checked to see if it is shutting off properly. The sensors seem fine so does mean a new throttle cable?

 

[Carlv8415]

Is it a constant 3k or does it go up and down ?

 

[Buddha123]

It can do both when in first gear it fluctuates and in higher gears it stays a constant 3000

 

[Thrill]

Cambelt timing?

 

[Buddha123]

They did say it could be I'm hoping not as I have no funds lol

 

[Thrill]

It's worth taking it to a specialist on here and letting them looking at it. When was it last done? A few will just re-adjust the timing but if they're doing that they might aswell stick a new belt on!

 

[Carlv8415]

Mine use to fluctuate on idle, I had a vacuum leak and the ECU couldn't find base air intake so was overcompensating

 

[Buddha123]

Vacuum leak where was that?

 

[Ryanph1rs]

my phase 1 at the moment has a similar issue the throttle cable is loose and is sticking open at 2k... i know this as when it does it if i lift the accelerator pedal up it goes back down.... also look at your maf sensor as i left this unplugged accidentally once after doing the plugs and it idled miles high. hope this helps

 

[Beasley Clio182]

Sounds like a vacuum leak to me ! Front of the inlet manifold is normally a suspect ! Had it a few times on mine ! Remove top inlet , clean , fit new gasket or pikey seal your old one , back together tight job is a good one !

 

[Dan@SJM]

Sticky throttle body

 

[Carlv8415]

Does your car have the engine cover on? Over tightening the bolts can cause the inlet the raise slightly causing a leak. Learnt from experience