It's been a long time since I had an 8 valver but ICV's always seem to be a problem with cav's.
My experience, albeit with 15 years overall of xev engines and previously four with an seh has taught me to :
1. Buy a new 'pattern part' icv
2. Fit it and then clean the hell out of your original one, you're going to need it as a spare
x20xev
For me a used one from auction site managed 3 cleans & changes before becoming useless but I can still clean and change between the original and pattern one when it starts acting up.( That's about once a year )
If your used replacement's playing up try your cleaned original. If it's the icv ,that usually works. ( I would also clean out the 'new' one, just in case and try again if needed ! )
If both are still crap I'd probably be thinking fuel filter/pressure.
Apologies if I'm stating the obvious
You know you've left it too long when it cuts out turning across oncoming traffic
James McGrath wrote:cavalier1990 wrote:James, do you find it better MPG or about the same? I know Super U/L is dearer mind you but wondered if it made any difference.
I think it's about the same. But to be honest I don't do enough miles in that car to notice.
It definitely does feel livelier though.
I changed to super unleaded with my last cav, an ecotec sri.
After being forced to rebuild the head thanks to a cowboy mechanic not replacing the (supplied!) water-pump, I decided my car would run on super-unleaded, after a short spell on regular.
After all, I thought, she's getting on a bit and deserves the best
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
.
It didn't hurt that I could ensure the injectors were always clean without messing about with redex.
The sri did feel more lively having previously been on regular.
I can't comment on my cdx as I've only ever run it on super (mainly shell v power but not brand loyal) and the gearbox is a crap wide-ratio
Just done a 400 mile round trip to Blackpool. 200 miles down with aircon on- 37mpg average.
200 back with aircon off - 42mpg.
Although I know it's not very accurate I still had a quarter tank showing when I topped up at 427 miles, put £20 in and went to half a tank
I'm quite happy using super-unleaded.
The only problem I have with it, as I increasingly seem to turn into an old-fart is 'this smacks of the de-valuation that happened during decimalisation' .
4 star had the equivalent RON(therefore energy?) rating to super unleaded. Regular unleaded therefore is a 'diluted' version without the benefit of cleaners.
The other consideration is the further dilution of regular unleaded with ethanol ( don't quote me 'cos I'm tired) but that stuff rots everything old and reduces power
I guess I'm thinking , after all the money she's cost you and will cost you in the future ( like the rest of us
![Laughing :lol:](./images/smilies/icon_lol.gif)
) , treat her well. I think the older 8v engines would benefit from premium fuel just as you would use the best oil
Apologies again, I did say I was tired but I just had to finish
![Laughing :lol:](./images/smilies/icon_lol.gif)