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Old 01-20-2003, 21:02   #1 (permalink)
Formally Thomas
 
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Lightbulb Advanced timing/Black smoke

Having the timing advance on a 5ltr windsor, will it cause the car to run rich and possibly let a puff of black smoke when revving in neutral??
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Old 01-20-2003, 22:40   #2 (permalink)
plarsson
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Short answer is no.

The longer answer is that timing is a component of the overall tune. Adjustments in ignition timing affect the other tuning adjustments as well.

If your car is carburetted then the excess soot you see when your gunning it is the improperly burnt fuel dumped into the manifold from poorly metered accelerator pump in the carby.
If its running unduly rich all the time then it could be a poor selection of jets or the choke not winding off properly

If its fuel injected, its the engine management over supplying fuel when your stomping on the loud pedal in neutral. If its running unduly rich all the time then it could be any number of thing out of wack. Look for cracked leaking vacuum hoses, leaking cold start injector(if fitted).

Hope this helps.
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Old 01-21-2003, 01:45   #3 (permalink)
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Check vacuum hose to fuel pump reg near throttle body.. What els did you touch?? All sensers connected ???The a.i.t air inlet temp senser is close to dist you may have knocked the connector off..???
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Old 01-21-2003, 16:43   #4 (permalink)
Formally Thomas
 
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Quote:
Originally posted by ebxr8240
Check vacuum hose to fuel pump reg near throttle body.. What els did you touch?? All sensers connected ???The a.i.t air inlet temp senser is close to dist you may have knocked the connector off..???
will check all above.
only happens if revved in neutral. will puff a little.
wont happens if opened up on open road
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Old 01-21-2003, 23:15   #5 (permalink)
Formally Thomas
 
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Quote:
Originally posted by ebxr8240
Check vacuum hose to fuel pump reg near throttle body.. What els did you touch?? All sensers connected ???The a.i.t air inlet temp senser is close to dist you may have knocked the connector off..???
Checked above for any loose connections and found everything fine. what else could possibly be the problem. the car isnt lacking any power. when it was dyno tuned last June, which it was doing it then too, no problems were found. the car seems to be behaving normal. im just curious what it could be, as its been doin it so long i havnt worried about it.....
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