I have 305 TBI stock Camaro with code 33 34 and 53 I replaced the MAP sensor and checked vaccum line. Also I just recently put on a new EGR. The check engine light only comes on if I drive the car real hard or if i put the car in first and manuel shift the trans. When I turn the car off the ses goes off and doesnt come back on until I run it hard again but the car does see to run rich to me and I notice when the ses ligt comes on the car puts out some blue smoke. Anyone with any sugestions

 

how many miles are on the engine blue smoke seems to be a sign of worn cylinders or rings. check ur compression. and my car is showing code 34 and 53 i cant even start it without pouring gas into the throtle body