Hi all.
So, i have an 1998 omega 2.5td and as the majority of you know, with the age, they tend to have a crappy hot start. Mine is not that bad, 2 to 3 seconds of cranking the engine.
Now, I know my injection pump probably is telling me that it needs to be repaired. And I'm going to repair a spare that I have, then change it. In the meantime I was researching why it starts to do the hot start issue and realised that when hot the electrical fuel pump does not prime the circuit, because it's controlled by 2 signals, one is the alternator warning light, the other is the number 1 glow plug. The alternator signal only works when the engine is running, and the glow plug when the engine is cold. I started to think and if I removed the signal from the glow plug and used a timmer relay to simulate that signal it should work as the timer relay resets itself when the ignition is off, so every time I put the key in the number 2 position it should prime the circuit.
The only test that I did was when hot connected 12V to the glow plug signal for 2 or 3 seconds and the engine started almost immediately.
What do you guys think?
I know that there is some bypass thing that tells the engine is cold so the glow plugs work even when the engine is hot, but I don't like that...
I was thinking of making the thing with the timer relay reversible, so even if this don't work I can put everything as it was.
Thank you in advance for all your opinions
And I'm really sorry for my English as I know is not perfect.
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Topic: 2.5td hot start (Read 141 times)