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Chevrolet Repair/after warm up / starts as if it's all chocked up

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Question
1995 camero 3.4 V6
when I first start it ,it runs fine. after it warms up it doesn't want to start. it will start and stall a few times and finally start but will spit and sputter until I rev it up a few times. almost seems like its all chocked up. I've changed the plugs, wires, throttle pos sensor, both temp sensors, gas filter. both o sensors. I'm starting to suspect the coils. or the ecm. help!!!!
(wheres the electronic spark control module)?

Answer
HI JOE I DO NOT FEEL THE PROBLEM IS IN THE MODULE. THIS SOUNDS LIKE A BAD MASS AIR FLOW SENSOR OR MAP SENSOR PROBLEM OR VERY POSSIBLE COOLANT TEMP SENSOR IS FAULTY..I WOULD SUGGEST GETTING THIS COMPUTER SCANNED FOR LIVE DATA NOT [TROUBLE CODES]WE WANT TO KNOW WHAT THE COMPUTER IS SEEING THE COOOLANT TEMP AT WHEN THIS IS WARMED UP..IF IT THINKS IT IS ALWAYS COLD, THIS WOULD CAUSE THE ENGINE TO FLOOD. I KNOW YOU SAID YOU REPLACED THIS SENSOR BUT WHAT IS THE COMPUTER SEEING THIS VALUE AT?? THIS UIS WHAT WE WANT TO KNOW..  BUT LETS SAY THE COMPUTER TEMP SENSOR IS READING OK..UNPLUG THE MASS AIR FLOW OR MAP SENSOR AND SEE IF THIS RUNS BETTER THIS WAY..IT WILL NOT RUN PERFECT BUT BETTER. IF SO THE SENSOR IS BAD..I DO NOT KNOW WHICH SENSOR THE ENG USED EITHER MAP OR MASS AIR FLOW. LET ME KNOW WHAT YOU FIND AND GET BACK TO ME..GOOD LUCK TOM....

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TOM SHEETS

Expertise

PLEASE READ ALL OF THIS BEFORE ASKING ANY QUESTIONS. IF THIS CHEVY SECTION IS MAXED OUT.YOU CAN REACH ME IN THE OLDS/BUICK SECTION. Will answer questions from 6:00am to 10:00pm all days [EST][[[ NO DIESEL OR PAINT QUESTIONS]]] will answer all 1965 to present QUESTIONS ON ALL GM'S on mechanics of these cars. Keep in mind i am not there in person i am going on what you are telling me !! PLEASE IF ASKING A QUESTION GIVE ME AS MUCH INFO AS POSSIBLE. THE MORE THE BETTER. SUCH AS YEAR,MAKE,MODEL,ENGINE SIZE. THIS WILL HELP ME HELP YOU. I will not be able to answer all questions because of some situations that i would really need to be there and see things for myself,such as electrical issues. In many cases i would need wiring diagrams. I can also give you an estimate on what the cost would be at our repair shop as an idea to help you. Keep in mind that my answer is ONLY MY ADVICE,ck with your mechanic as well.. >> THANK YOU, TOM..

Experience

I have been a ASE certified master mechanic for over 30 years and certified IN ALL 8 CATEGORIES,[engine repair,engine performance,auto trans,manual trans,clutches,steering and suspension,brakes,electrical systems,heating and air/cond. I am also a state CERTIFIED inspector for over 30 years. I do computer work [pcm]fault codes,pcm flashing,state inspection monitor readiness,repairs on exhaust,fuel service,[injection and carburetor,] charging system problems, running issues,alignments,frame problems,tire balance,struts and of course standard and anti-lock brakes.

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nys state auto repair industry and ase group.

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Education/Credentials
high school,4 years of tech school,and many many hours of auto training with many gm classes and aftermarket training classes..

Awards and Honors
ASE MASTER TECH CERTIFIED IN ALL 8 CATEGORIES.NYS INSP LICENSE AND A/C CERTIFIED

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MANY CUSTOMERS IN OUR BUSY SHOP.

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