black smoke

[tnt]

when i get on the gas real hard the it makes black smoke sounds like to much gas on codes on computer plugs and wires are new coilpack is good ecm is good can any one tell me where to look next?

 

[cool 84]

What's your fuel pressure?

 

[crazygn]

Do you have a adj fuel reg and gauge , if so whats your fuel press these guys can help yea out in no time.

To me it sounds like your running rich add more air or take fuel away , i would take some fuel press off first to be safe.

 

[tnt]

pressure is about 40lbs and there is no ajustment for it also i do not no what kind of injecters are in the motor.

 

[GNeric]

I hope they're not Tomco 32 injectors. Just took a set out that when tested, shot a straight stream even with 50psi behind them. Installed some actual Blue Top 36's and runs beautiful now.

 

[tnt]

i think it maybe tps at idle i get olny 00.4V at wide open 0.38 the ohms are 4.6K to 0.7 does any one know what the ohms shound be think the tps is good but is the wrong one for this motor also what is a IAC and where is it and how do you reset it ?

 

[BuickTV6]

I would check fuel pressure and TPS settings. When my tps settings were off, it would also run rich under WOT with black smoke and the SES loght would come on.. All the IAC does is add air into the throttlebody. Very crucial upon morning startups and such. I you have a bad IAC, the engine will run veyr rough, and stall sometimes at idle. The IAC is located right below the throttle body. It is black and srews right into the base of the TB. Go to http://www.gnttype.org/techarea/faq/IACreset.html and follow the instructions to reset the IAC. Also, get those TPS settings accurate! hope this helps!
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85 WH1 with the Grand National package
Ta33 turbo, 2.5"Uppipe, walboro 307 FP, martone Adj FP reg, Ultratrans rebuild with performance mods, 2800 stall convertor, Art Carr RV shift kit, Hooker 2.5" duel exhaust, no cat.
Member of the Manitoba Grand National Association. Going fast with class!