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Old 12-12-2012, 08:07   #1 (permalink)
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timing issue

Im back,, got the relay fixed,, now have a timing issue, when I set the timing, and plug up the shunt, the engine starts good when warm, bur is hard to start when cold, is the timing wrong, am I not doing something right?
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Old 12-12-2012, 08:08   #2 (permalink)
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Re: timing issue

ps timing is at 10 deg above tdc
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Old 12-12-2012, 09:14   #3 (permalink)
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Re: timing issue

Might help you to get a reply if you posted more info i.e model , year , engine etc .
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Old 12-12-2012, 09:30   #4 (permalink)
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Re: timing issue

oops,, LOL,, its a 94F150, 302 efi
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Old 12-12-2012, 10:02   #5 (permalink)
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Re: timing issue

Does it get fuel? Run this check and see what comes up. Fuel Injection Technical Library How To Run a Self-Test
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Old 12-12-2012, 11:59   #6 (permalink)
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Re: timing issue

Did you dis connect the spout connector and rotate the distributor by hand while the engine was idling and not warmed up to adjust the timing?
Make sure that the engine is cold when you do this because its the only way to be sure that cold starts are easy.
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Old 12-12-2012, 12:53   #7 (permalink)
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Re: timing issue

I believe the timing should be before BTDC not after ATDC.
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Old 12-12-2012, 18:20   #8 (permalink)
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Re: timing issue

When your timing the 5L, the spout has to be pulled out.
It makes no dfferenct then if hot or cold as long as the motor will run at a steady rate without stalling because the TFI cannot change the timing because the Spout is open from the TFI to the computer.
Double check the timing spec and do it again. to be sure and put the spout back in. Reference your setting to #1 cylinder first one on your left looking at the motor from the front.
Cold starts use the intake air temp sensor and the coolant sensor as the reference it is to set up for cold start.
It richens the fuel, advances the timing as much as 22 degrees and opens the intake air controller for more air and higher idle speed.
Hot start or restart is the same except for the signal values it gets from the same sensors telling the computer it's a hot start.
If you do not get these actions you have some part of the system in fault or you base timing is incorrect..
Good luck.
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