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View Full Version : Troubles with the emission controls



Coketruck
12-10-2003, 15:18
Hello,i,m a new member.

I have an 88, k5 Blazer wich is having troubles with the annual emissions inspection.
It throws a lot of black smoke,when it is stoped and his engine is accelerated.It pass the the opacity values in the inspection.
While the truck is running,it doesn,t throw smoke,only when it starts to climbing throw a little or when i,m going a hich speed and it shifts to a sorter gear(D to 2 for example).

I think it should be the injectors and i,m thinking to replace it for a new or reman set.
But,could it be the emissions control sistem?
I have doubts about it ,cause i put a new TPS,and i don,t know if i did a correct calibrated .
There is vacumm in the hose and the EGR valve closes when you remove it.

Thanks for your help.