Gold FFM Popular Post tomcattom Posted May 12, 2022 Author Gold FFM Popular Post Report Share Posted May 12, 2022 Bit of a mixed bag of emotions for my 500th post on my restoration thread. Car was booked in for a new exhaust to be made by Hayward & Scott back earlier in the year and was dropped off to them a week ago last Saturday , however on my way round the northern stretch of the M25 to drop the car off I suddenly lost all boost . The car wasn't misfiring and no CEL light was observed, I simply had zero boost. I managed to get the car there safely without any further drama, because its still otherwise driving fine and able to keep up with the traffic. We couldn't find any obvious reason for the loss of boost for the brief period I had to look at it when I dropped it off; hoses all looked okay, wastegate flap moves freely, the elephant trunk hose from the airbox hadn't delaminated and collapsed, so I was at a bit of a loss. Fast forward to today. I collected the car and while loading the old exhaust parts into to wife's car several large chunks fell out of the old cat, so at that point we thought it might be a simple case of blocked exhaust and apt timing for a new exhaust. Anyway, here are a few snaps. I've had a 3" system made with twin 3.5" inward rolled slash cut tailpipes and a 200 cell sports cat. On the way home sadly the car still wasn't running right. The boost seems to have returned to some extent, but if I try to apply more than the merest amount of throttle it just starts coughing and spluttering, but oddly still no CEL light. As with the journey to Essex, the car was able to be driven back safely, but just seems to have lost its get up and go. As I backed the car into the garage when I got back the CEL light did then come on, so I'm hoping whatever error code has triggered that may reveal the problem. Either way I'll be investigating more thoroughly over the weekend. Here is a brief video of what it sounds like with the sports cat fitted. I did get a decat made too, but that's currently sat in the boot. The small puffs of black smoke suggest I have a potential fueling issue, so I'm hoping that the new RC injectors I have may go some, if not all the way to solving the running issues 🤞 4 Quote Norfolk Mustard S4s #1 Link to comment Share on other sites More sharing options...
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