Re: 75 twinspark questions (long)

[jonathan coates <alfa@xxxxxxxxxxxxxxxxx>]

In message , Rich Wagner <drsavage@domain.elided> writes
>Jonathan wrote:
>
>>Now that I've done almost all that I can think of to get my 75 to run
>>well, its time to ask for more help. The car seems to misfire when the
>>throttle is wide open at low revs. From idle it takes more than 3
>>seconds to get to 4000 revs. Does this seem normal?
>>The misfiring goes away above 4000 revs, or by backing off the throttle.
>
>Your car is exhibitiing symptoms that can be caused by two problems:
>
>1)  Lean mixture. 
Spark plugs look fine.
>Also check the O2 sensor.  The situation you describe is dynamic, and so
>the injection system should be running open-loop.  However, since the O2
>sensor has a great deal of effect on mixture, it's worth checking.
>
Dont have an O2 sensor.
>2)  Loss of spark at high pressure.
Fitted new Dizzy caps, small change, but not dramatic. New rotors now on
order.
Thanks

- -- 
jonathan coates
75TS etc

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End of alfa-digest V7 #430
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