Hi guys, for a couple of years I've been suspecting fuelling may be an issue
![](./images/smilies/spacer.gif)
(be it pump/resistor pack/ecu) and so got hold of a Innovate AFR ratio gauge to better understand what what may be happening.
![](./images/smilies/spacer.gif)
I've been running it for around a month now and wondered what numbers people are seeing at a few points:
![](./images/smilies/spacer.gif)
1) Cold start idle
2) Warm idle
3) Cruise
![](./images/smilies/spacer.gif)
(2500
![](./images/smilies/spacer.gif)
- 3000rpm)
4) Accelerating
![](./images/smilies/spacer.gif)
(not WOT)
5) WOT up to 6/7k
![](./images/smilies/spacer.gif)
I've noticed that
![](./images/smilies/spacer.gif)
(as you might expect) the ratio
![](./images/smilies/spacer.gif)
'switches' on the trigger of the stock narrow band correcting and tuning the mixture rich/lean.
![](./images/smilies/spacer.gif)
However on occasion while under light acceleration I've noticed the ratio push up to mid 16s.
![](./images/smilies/spacer.gif)
.
![](./images/smilies/spacer.gif)
.which to me seems a little lean? Under these conditions any further throttle movement seems to make the engine feel like it's starved of air and struggling to make positive boost.
![](./images/smilies/spacer.gif)
.
![](./images/smilies/spacer.gif)
.
![](./images/smilies/spacer.gif)
? Under WOT I'm generally fine
![](./images/smilies/spacer.gif)
- around 11.8 to 12.5 depending on what side of the bed it wakes up on!
![](./images/smilies/spacer.gif)
This
![](./images/smilies/spacer.gif)
(I suspect fuelling) issue has been evading me for years because it's so intermittent and nuanced
![](./images/smilies/spacer.gif)
- but ultimately I'm fairly sure I'm losing efficiency and by association power and reliability from this problem persisting.
![](./images/smilies/spacer.gif)
I appreciate this is all a bit specific and everyone's engine will be churning and burning in it's own special way which is fine, but just as a ball park what are we looking at?
![](./images/smilies/spacer.gif)
Cheers!