engine stalls when coming to a stop "not always"

CHEVROLET CELEBRITY
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SITMANRJ
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1988 Chevrolet Celebrity, Automatic, 2 wheel drive 2.8 multiport V6. 86,000 original miles.
The engine stalls when coming to a stop in drive. (Sitting at a light it stalls out). When the engine is power braked at a stop light it does not stall. The IAC is new and has been set to specs. I have cleaned the throttle body, tuned the engine, checked the computer with a scanner, no codes present. I also checked the data stream and all the sensors are within voltage limit, etc. I just replaced the fuel pump, strainer, filter. Do you have any idea what could be causing the stalling?
Aug 15, 2007 at 6:46 PM
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RASMATAZ
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[quote:9c6707bf85="sitmanrj"]1988 Chevrolet Celebrity, Automatic, 2 wheel drive 2.8 multiport V6. 86,000 original miles.
The engine stalls when coming to a stop in drive. (Sitting at a light it stalls out). When the engine is power braked at a stop light it does not stall. The IAC is new and has been set to specs. I have cleaned the throttle body, tuned the engine, checked the computer with a scanner, no codes present. I also checked the data stream and all the sensors are within voltage limit, etc. I just replaced the fuel pump, strainer, filter. Do you have any idea what could be causing the stalling?[/quote:9c6707bf85]

Find the EGR valve clean it out and see what happens. When done go ahead and clean the PCV valve
Aug 15, 2007 at 7:15 PM