Question about 1994 Mazda 929

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Intermittently the car will not go over 25-30 miles per hour with the accelerator floored. Other times, the car bounces really badly as if it had a blown front tire (not) or totally worn out shocks (

Intermittently the car will not respond to the throttle, it feels like the engine is held back by brakes (not) or like it is choked down somehow. the throttle may be to the floor and it only goes about 25-30 miles per hour

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Hi I am Vortash have seen this fault twice with a different reason each time .. first on was the cam sensor giving the wrong information to the Engine management Unit ... second one was the EMU itself the plug had become dirty and corroded and a clean solved the problem .. with the cam sensor ..was replaced and the fault cured .. The way I found the fault was with a fault code reader an invaluable tool that has saved me many hours of unnecessary work ... regards Vortash

Posted on May 18, 2009

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Posted on Jan 02, 2017

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The engine ramps up and down both at idle and when driving. I actually lose power and it almost feels like it is running on 3 cylinders, step on gas and it revs up but takes a few seconds to actually...


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This is not going to sound possible but it happened in my 1994 Crown Vic too. If you have traction control part of the system controls an air valve in the air filter intake area. When the traction control senses a difference in rear wheel speed it chokes the engine so you don't spin the wheels.
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Greg

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