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'90 saab lurches/misses under load
Posted by Clockwork [Email] (more from Clockwork) on Wed, 21 Jun 2006 18:54:40
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hello everyone, i just bought by 3rd C900, a 1990 16v and now it will lurch or miss badly when i put it under load, if i keep the rpms up its fine but when i shift it bucks like this and the tach will drop to 0 momentarily. one thing is that it only does this when the motor is warm and has been driven for over 5 minutes. it reads about 25psi of vacuum.
im getting a fluctuating voltage from the o2 sensor but the voltage is only .02-.1 and not within the specs of the book which are .4-1v. but the sensor is expensive and i dont want to throw parts at it. thanks-ryan
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