Hi all,
I have a 2007 2.4l CH manual velocity. It has flat spots/dead spots/loss of some power throughout rev range. The car doesn't seem to be missing or running rough it just has less power than normal at these times. The problem is intermittent (ie not always doing it) and is more pronounced at take off. I replaced spark plugs (with NGK iridiums) and the problem seemed fixed for about a week. Now it is doing it again.
Anyone got any ideas as to what is causing this and how to fix it. Cheers.
It maybe just bad fuel.
I test drove a Toyota supra years ago a mate had seen it in a used car yard for about a year and he was interested in buying it so we went in and took it for a spin and she ran like a dog that no one would buy, but we put
$ 5 of fuel in it and she started to run clean and after some more trashing she was running spot on.
Mate went in the next week to buy it and she was sold.
I test drove a VL Turbo once from a sale yard and the same thing just running like total rubbish but she was starting to run a lot cleaner and the sales man would not allow me to clean it out properly, thinking I would buy a car that ran like that, you have to be joking, I would of if it ran clean, so no sale.
I don't like Caltex 91 unleaded or any of their other chains 7/11 etc in SEQ as it's crap, I can tell it it's using Caltex fuel the E10 is fine but the rest 91, 95, 98 are crap.
A mate showed my how his 375KW VF Commodore went and I said you are running Caltex in this and he said yes, I can hear that noise they make it's like it's not running spot on clean, it took me a few years to spot what was going on, as I thought all fuels were just the same, but once I got a handle on it I could pick it up.
First I had a new V6 VS Commodore and it would do 218KM/H but Caltex only 205KM/H
The wife's V6 VS would ping on the Caltex 91.
My VY SS made a grumbling noise when flat out with Caltex you can hardly hear it but when your ear is tuned in to it you can pick it up instantly, many a time I would go a 500km trip and come back thinking she does not truly perform that well, most of the fuel up around there is Caltex and once I got a handle on what was going on I only looked for BP or Shell and boy coming back home she would really impress me how well it went.
Old mate got the *poo*s when I pointed out that his 375KW did not impress me at all, but last time I went with him she did get up and fly and I said that's not Caltex and he said it was BP 98 with a smile ear to ear.
I have ran him many a time in my VY SS to his VZ SS and always hosed off his every time, but once when I was using Caltex.