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Old 01-01-2013, 11:14 AM
joe_padavano joe_padavano is offline
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The TBI and CCC computers are completely different, as are the wiring harnesses. The CCC Qjet secondaries are not computer controlled, so any problem there is unrelated, however as noted, you are unlikely to see the air valves open if you are simply reving the engine in park.

Does the engine have an oil fill tube at the front, above the water pump? If so, it's an Olds 307. What is the eighth character of the VIN? If the car was originally equipped with a 307 Olds (as most B-body wagons were in the late 1980s), the eighth character will be a "Y". If it is, the car was never TBI from the factory.

The CCC system can be made to run very well, but it takes a LOT of effort and the carb adjustment process in the factory service manual must be followed EXACTLY. Any small leak in the miles of vacuum tubing on the engine will be cause for poor performance.
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