Postby Ancs » June 7th, 2008, 10:21 pm
Well when I had AC in my ride, the pinging was prevalent especially when I stomped on the accelerator or put the engine under additional strain (ex. climbing the Lady Young with the A/c on) the pinging will be noticed...what you can do is retard the timing just a tad, one degree should be fine. But you have to remember that this is a 1.3 engine, that's high compression and will have the propensity to run a little hot, esp. since you have a 'chip n all!!!' So you can check your base timing and adjust / retard it to suit. The A/c also has an adjustment but I don't think that, that can solve your problem (which by the way is very small!). Timing is what I'm leaning to, your 'chip' might be your small issue...
Anyway...I'm gonna leave some room for other suggestions....