Type: Posts; User: cjapeterborough
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As you have likely found out the full set of misfire codes is a symptom of a bad ECU.
Are the coils genuine?
The first two P0646 and P1682 indicate an aircon problem which is probably a seperate...
Thats part of the crankcase ventilation system (feeds into a catch can at the back of the engine block).
Easy enough to swap part I think is 55351569
Ask what work has been done...at that mileage apart from suspension components and brakes virtually all the major stuff may have been replaced.
If its been well maintained I wouldnt worry too much...
This should help
Also a quick check is to lift up the big black pipe that runs to the throttle body...
You dont tell us which car/engine combo but its likely the turbine shaft is moving around a bit and you can hear it whining under load/boost.
Disconnect the pipe running to the intake throttle body...
Its true the diesels have EHPS but I am suprised there would be a noticeable difference versus mechanical pump.
We have 5 Saabs in the family a mix of 9-3's and 9-5's and frankly I have never...
The tic tic tic is the throttle body going into limp mode....and putting the engine in the same state.
Disconnect your battery to clear the code otherwise...tic tic tic straight away
Then reset the...
You have probably found it by now.....but...
Have you probed the wiring back from the connector to establish a break or corrosion (high resistance) problem.
I usually do this type of thing sticking a tiny pin in the wire at various points back...
Opcom is useful but only for the Z19 engines I doubt if you can make those changes........you can code injectors and force regens and get all the engine read backs
So useful for those things alone....
pm me if you want further details...you will need Tech2 as you will almost certainly trigger fault codes when working with the CIM unless you are very lucky and get everything aligned on the first...
You probably have an air leak in the pipework around the intercooler or anywhere up to the manifold.
Switch resides inside CIM unit...airbag has to be removed...there is a chap in Ballygowan who should be able to help you.
If you are handy the switch pack can be removed and rebuilt otherwise you...
Logically the swirl flaps are the wrong side of the engine to go anywhere near the turbo...they would have to go through the cylinders first and cause all kinds of mayhem.
Although I do agree there...
If the pipe is collapsing then that probably means the actuator or VNT in the turbo is stuck.
You really need to get at the actuator rod and see if you can physically move it back and forth...should...
Remap should sort but really depends on the current state of the inlet manifold and DPF.
Any remap should take care of further swirl flap and EGR issues and prolong the life of the DPF.
Troubles are probably DPF related ie too high a back pressure and probably blocked.
I would get access to a Tech2 or Opcom and force a regen you also have other leak issues.
If you run these cars...
If you are getting a limited performance message and limp mode then there will be code.
Cheap option is Opcom which has a good chance of finding the problem or a Tech2 to be sure.
Tech2 needed,however if you can get the fault code you may be able troubleshoot the error first using the WIS and wiring diagram.
Those injector values are excellent anything below 1 is very good and acceptable values up to about 2-3.....a bad injector will give about 5 or so.
Your fault code is unrelated imho.
As to an air...
If you have access to Opcom then you may be able to check the injector variances to eliminate a possible injector issue.
Over fuelling may also occur if you have a leak somewhere on the inlet so...
The central pin should move up and down easily.
You can do an EGR flow test with Tech2 to check performance.
Longer term if you are keeping the car consider mapping the EGR closed and out of the...
Check the ignition barrel is popping up proud when you remove the key....if not the car still leaves everything still switched on.
After that suspect the amplifier and either remove the plug or fuse...
Before I forget the other option would be to get it mapped out......if none of the above helps