[mike1967]

the cheap locking kits are hit and miss i have one thats 1 degree out but i use feeler gauge to pack out the square part of cam locks so cam cant move,, you also must use a 27mm open ended spanner to hold the cams while doing up the stretch bolts,, NEVER USE THE CAM LOCKS TO HOLD CAM WHILE DOING STRETCH PART OF BOLTS,, as timing will always be out, there is no way of telling without diagnostics scan live data on vanos will show actual position and prescribed positions,
before doing up stretch part would also insert the spring tensioner and just check all locks fall in place again if do then the preload you used was correct, you should always replace all stretch bolts on any job

 

[mike1967]

i use autocom for diagnostics live data to read vanos positions, and basically yep set the timing and drive it, will say needs a good 3-5 cold to hot runs so get the adaptation to come back in line.. or what i do is to engine off ignition on remove positive battery terminal and touch to earth ie chassis of car, reconnect battery and you will ear loads of clicks etc ie car is ressiting hard set adaptations this drops the static build up as well from the chips,, worked on rolling road tuners for a number of years its a common place reset on bosch ecu's, when i done a seminar years and years a go for psa the guy on that also told us about this he called it power latch.. someone people on here have made comments about it being something else and would never do that etc,,
below is a link for how it works from another psa tech, i was having a laugh with a mapper at black magic tuning the other day he also swears by it,,, it totally different from some idiot putting jump leads on a totally dead car and trying to start it, or leaving the ignition on when connecting jump leads,,, or shorting the battery while engine is running,, ie this adds big amps, removing static and reset has no power,, think of a ecu like thousands of little two way valves that get mixed up, and by palling in reverse the static out of the system it resets it all back to the beginning,,, i've seen people replace ecu's before to find all it needed was a hard reset/power latch call it what ever,

Ecu Reset Procedure - C4 - Technical - Citroen Owners Club. The citroen cars forums

 

[mike1967]

thought i'd update this, cars been back together since yesterday, I did the touching positive lead to earth with the ignition on and figured out how to reset the adaptations in ista. Car seems to drive fine, idles hunting a bit but i'm assuming this is the car relearnign everything. there are no unexpected codes in ista d although I've yet to find how to read the vanos positions.

Car passed it's mot this afternoon with decent emissions figures so I'm fairly happy my cheap timing tools have done the job properly, I'll be doing a decent journey in it tomorrow with lots of different types of roads so hopefully that won't throw up any issues.

Thanks for the help,
Chris

ideal all sounds where it needs to be from sounds of it, they do take a few good runs to settle in to what they are going to be if that makes sense, vag dsg gearboxes are also learning ecu'd etc i've seen them have ecu flashed ie mapped and from the start are flat and dont change gear nicely, but after a good 20 miles of kicking it after it turns in to nutters cars again, everything is ecu and learning to save fuel basically and to allow a car to be a fast car depending on the driver after a 20 miles

 

[mike1967]

ideal i'm sure some would appreciate a write up on insta and how to as some have it and its not easiest to play with