Trigger Point Conumdrum

Ok Thank You.
I will concentrate on that for the moment. Was there anything that stood out from the ECU analysis results?
Peter

Hi Peter,

I do not necessarily get all the history here. But what I remember was a non starting engine and trigger points discussions. I have not seen an ECU analysis. However: Even if trigger points are broken, engine must start and then immediately stop again.

I have attached the ECU analysis again for you to have a look at. I am sure that whilst the Idle-run on the TPS is working the Acceleration Switch is definitely not working. It seems to lose connection at the little brass rivet/ connector at the bottom between pin 12 and pin 9 and 20. Anyway research suggests that the car should still fire without the TPS - Is this correct??
As for the Trigger Points they seem to be working (but as Nordfisch suggested) the 1.8 mm left on the cam might not be enough and I will have to modify/replace them?

Hi Peter,

at a quick glance I see several issues:

• Pin 1 ait temp: Must show reistor without ECU
• Pin 2 & 9 you saw yourself
• pin 17 should be 0 in idle, you have to adjust
• pin 18 should be +12V while cranking engine
• Pin 20 also not working

It is true that car should run (not well though) without TPS. But you also need pin 18 (Starter) for the car to start well. And pin 1 is my biggest concern.
a 1.8mm cam on T.C: needs replacement of cams. Most probably also bending will not help any more.

Hi Volker,
Thank you - i have found this site and you and Nordfisch to be extremely helpful. Could you please tell me a little about testing pin 1 (where the air sensor is) and pin 18 ( what else to test). Kind regards
Peter

Hi Peter,

well there is not much to say. Pin 1 is the air temp sensor. An NTC that changes resistance with air temp. If it is open, ECU will use roughly 18% more fuel to compensate for the increased mass of extremely cold air. Pin 18 is +12 V while cranking the engine. Then the ECU knows you want to start it and uses more fuel (after start enrichmenent) and also injects even without trigger contacts working.