I am working on a problem vehicle (Poor Idling) at the moment and have several waveform captures utilising 2x First Look Sensors (inlet & exhaust) Amp Clamps on Starter & Injector Current then CKP, CMP, FRP, MAF ..... I can upload these to the Library as we speak making it clear that they are either...

And it gets worse, just when you thought it could not volvo invoice 1.jpg Further evidence that this engine has not run for months Why fit Bulbs ?? To make £3.00 Note the Mileage at 90,000 !!! the Mileage at Nov 2015 was 90k it is now showing 185,000 miles. ??? Volvo fitted a new Ecu and the ECU in ...

Technician but what I want to carryout is a dynamic test of the pedal using the scope, but I have no good known comparison waveform, You don't need comparison waveforms, when it glitches it will stick out like a "saw thumb" Sharp drops or Noise. Connect the scope, back probed to ECU pins 29 & 10 at ...

Look up "ScannerDanner" on Youtube.

Post in Error

and that "blip" coincides quite nicely with peak voltage

I always scope Maf alongside Pedal Position. Pedal sharply to the floor and watching MAF reaction to pedal signal is a good benchmark as to Maf condition / reaction time

Richard Engine mechanical rather than starter is my belief (98% sure), With a cranking speed that low, my first port of call would be the Starter and its Circuit, which you seem to have covered belt & braces. It is Clear that one Bank has little or no compression. Any evidence of misfiring when it d...

It gets worse, if you thought it couldn't !!! It is a Can of Worms Now I got fault codes for DPF Differential Pressure Sensor, it does not have one neither are the Pins in the ECU connector populated. Fair enough I can work through that some how. May be a bad code, bad description. No Comms with Add...

Fat Freddy wrote:Great news STC.

Nothing like the sweet smell of victory.

In the famous words of Vinnie Jones ( Lock Stock )

It's been Emotional !!!