Hesitation at Speed

[coco79]

I'm getting the odd slight miss and hesitation at high speed, particularly on accelaration. I'm guessing the throttle pots/lambda sensor or HT leads may need replacing. Are these all DIY jobs? or best I book it in to an indie?

Thanks

[stuthemong]

Unlikely TPot or lambda if you are high throttle positions and high revs (closed loop control isn't used, lamda/tpot are only under 3Krpm and 50% throttle or so on most cars, I know not on the tuscans exactly).

Most likely coilpacks, then HT leads. I doubt changing coils on a tusc is an indy job - I did both CP's on my cerb in about an hour from never doing it before, lots of cuts, but an easy job

[ochten]

I have a similar problem and found out that I have a Temp Sensor problem in the LOGFILE. Could be that the sensor is giving the wrong data to the ECU. Have to find out it next week.