SiriusProjects Posted April 17, 2015 Posted April 17, 2015 Hi Guys, Just want to run this query past you and see what you think. I was out in my Zed earlier and was going down a hill. It had a 30mph speed limit, so I slowed down and put the car into 3rd. I then just lightly applied the accelerator to keep the momentum going, however I started feeling some hesitation from the engine. I was doing on or just under 30mph. The thing is, I've had this a few times when driving downhill. Sometimes I only drop down to 4th but I still get the problem. It's really starting to bug me, but the thing is, I don't know if it's necessarily the car. Could it be my driving style? I just don't know. What do you guys think? Quote
AMT Posted April 18, 2015 Posted April 18, 2015 What do you mean hesitation, is it like a slight jerk? Do you have an HR or DE. HR's seem to jerk from time to time. Quote
SiriusProjects Posted April 18, 2015 Author Posted April 18, 2015 Yeah it's a slight jerk, but it does it a few times. The only way I can really describe it is that it's like the car is braking without me actually touching the brakes. It slows down and then suddenly pulls again. I have a DE if that helps. Quote
Jonny Z Posted April 18, 2015 Posted April 18, 2015 It will be the fuel switching on and off, modern ECU's switch the injectors off when the throttle is closed when coming down the rev range, it switches back on at a given RPM, you can feel it do this, if you catch it at the point of switching it feels like a hesitation as the fuel switches on and off. 1 Quote
SiriusProjects Posted April 18, 2015 Author Posted April 18, 2015 Ah, I see. Is there a way of avoiding the fuel switching problem or at least lessening the effect? I will admit I don't drive my zed with a heavy foot and am wondering if perhaps a slight change to my driving style might help. Quote
Ebized Posted April 18, 2015 Posted April 18, 2015 Try dropping one more gear - but then I enjoy engine braking and with the syncro rev on the 370 it was even harder to resist . Not everyone's cup of tea but I did not find the symptons you have described with the 3 Zeds I owned. Quote
Jonny Z Posted April 19, 2015 Posted April 19, 2015 Fuel switching is just one of those things you need to drive around, the point of switching can be changed with a remap but the cost of that is a bit excessive IMHO Quote
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