All right guys I look my V8 1991 camaro to emmission a month ago and fail, so I took it to the shop and they replace 4 fuel injectors and clean the other 4, they also put a new oxygen filter, and play with the air fans, I put a lot of money into it. Today I when to test the car again and it fail on the same places, which are hydrocarbons 1.65g and carbon monoxide 15.86g, I don't know what as to do. Don't have a lot of money for more big repairs. What would be the problem now?

Ouch,that hurts.Does your service engine light come on?Did they check fuel pressure,coolant temp,map sensor.There is alot involved,don't guess at it,you will spend money on things that wont fix the problem.Did you get your AC working properly?

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68 z28 ,68 rs 327 ,73 454 vette, 2 goofy kids