peterrosey
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| posted on 16/7/07 at 08:40 PM |
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Zetec SE starts badly but idles perfectly - eh?
Running a 1.6 Zetec SE (Sigma) engine with R1 throttle bodies and Emerald ECU. Once I've got the car running after lots of cranking it runs fine
and holds a lovely clean idle (and revs okay, too - is going to be mapped so not too worried about this).
But how come it starts so badly? It has fuel good pressure (4 bar) and I've had the injectors out so I know they're spraying fuel. The
battery is a new Red Top type race battery and is always fully charged up. Clearly if it were an Emerald wiring loom issue it wouldn't work with
the engine running.
Weak spark? Low voltage (rectified when the alternator kicks in after engine starts running).
Any ideas chaps?
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Andy S
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| posted on 16/7/07 at 08:51 PM |
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Check the earth strap from the chassis to the engine.
Cheers
Andrew
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Danozeman
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| posted on 16/7/07 at 09:07 PM |
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Too much fuel on start up so its flooding a bit?
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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tks
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| posted on 16/7/07 at 09:39 PM |
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i would say contrary starting needs excess of fuel..
sow i think not enough fuel...
Tks
The above comments are always meant to be from the above persons perspective.
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Chippy
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| posted on 16/7/07 at 10:28 PM |
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Has your Emerald been set up yet, as you need to program in start up, and warm up enrichment. If you are going to get it mapped then they will sort it
for you. The reason that it starts eventually is that the engine gets warm as it cranks, the warmer it gets the easier it starts. HTH Ray
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austin man
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| posted on 16/7/07 at 10:49 PM |
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Have you made sure youve set up the throttle pot sensor ? then there is the open or closed loop on the Emerald. Brotherin law has it on his 2 litre
Zetec with throttle bodies. Car has been mapped by none other than Dave Walker and is still a little hesitant on startup
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iscmatt
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| posted on 16/7/07 at 11:43 PM |
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i found this on my car, my timing was way out, something like 40 deg advance - it eventually started after lots of cranking, now set at 15-16 deg adv
and fires like a beaut!
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peterrosey
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| posted on 7/8/07 at 11:06 PM |
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Just been to Emerald and had Dave Walker rolling road the car. The poor starting turned out to be the crank sender wires the wrong way around.
Apparently it will start (about 1 time in 50) with them the wrong way round and then run perfectly.
Swapped them around and it now starts instantly.
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pocket rocket
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| posted on 2/11/08 at 09:54 PM |
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Hi,
How easy is it to fit the R1 TB's
is it worth the cost/effort?
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