Why does my 1.2, 12v, CGPA never start on first turn of the ignition key but always starts on the second turn of the key (hot or cold)?

It's only behaved like this since I recently changed the timing chain etc. (involving removing throttle body and inlet manifold).

Once started it idles and runs perfectly. No codes are shown on my (fairly basic) reader. No warning lights on dash.

Have I disturbed something when doing the chain?

TIA

Might be worth getting it scanned with vcds as it may ping up something your reader can't read.

Check any connectors/wiring that you have disconnected or are in the vicinity of any work you have done in case you dislodged them.

Alasdair

It could also be a fuel problem? Perhaps its draining back to tank and takes a couple of times to prime system again or its letting air in somewhere?

Alasdair