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2001 3800 Series II Supercharged Motor Issues HELP ME!

9

97Luminaltz

New member
Hello To All!! This Is My First Post And I Hope And Pray Someone Can Shine Some Light On My Issue....... I Own a 98 Lumina LTZ I Tossed The 3.4 v6 and Built A 2001 GTP Motor and Tossed It In Here Is The List Of Mod's......

2001 GM 3800 Series II V6, ZZP Full Length Stainless Headers, Ported and Polished Heads, Comp Cams "Hot" Roller Cam, 1.9 Roller Rockers, Double Valve Springs, Polished Upper and Lower Intake, 3.5 Supercharger Pulley, ZZP Stage 1 ECM Tune, K&N 4 Inch Cold Air Intake, Accel Coils, MSD Street Fire Plug Wires, E3 Spark Plugs, 2.5 Stainless Exhaust, Flowmaster 40 Series Mufflers and 3.5 Inch Polished Tips, ZZP Strut Tower Brace


I Recently Been Having Some Issues With The Motor Not Running Right.... It Seems Like Its Lacking Fuel But I Have Good Pressure To The Rails I Changed The Fuel Filter, Crank Sensor, MAP,TPS,Air Idle, Mass Air and Plugs And Coils Plus ICU!! It Runs Great For 30 Seconds Or So Then Stumbles and Sounds Like Its Loading Up It Will Clear Itself Out If You Up The Idle To 2500RPM or so as soon as you let off its back to lacking power and spittin and then finially quits.... Turn The Key Off and Wait 5 Seconds or So Start it and it runs good for 8-10 seconds then back to the issues....... I Just Came Home From Town One Day and Went Outside 20 Min Later and now its doing this.... There is no security light or engine light i hooked a scanner to it and got only a O2 Code and A/C code ( No A/C Pump)


ANY INFO WOULD BE SO HELPFUL I BEEN AT THIS FOR OVER A WEEK AND I AM AT THE END OF THE ROPE


PLEASE PLEASE PLEASE HELP!

 


I Did Pull The Accel Coils and Stuck The Stock Ones Back On... I Got Great Spark and Good Fuel Pressure But Still Am Having Issues
 


Ok dumb question but I didnt see you list injectors anywhere... Did you do those also? and if so did you have the tune adjusted for it?
 
Firs thing I want to know is the cam specs.

Because if whatever it is, coupled with the 1.9's, without proper valve guide milling, will cause issues. Factory guides only allow up to .550"~ of max lift.
 
I Did Injectors I Do Believe There Lucus 42.5lbs And Im Pretty Sure There 1.9 Rockers I Could Have The Digits Mixed Up.... I Had The Car Fully Tuned At Beyond Redline In Green Bay, WI ($250) I Put A Total Of 8000 Miles On This Whole Set Up These Are The First Issues I Encountered I Also Took Out The E3's And Went To Autolight 104's

Were is The engine coil mod actually at??
 
  • 212°/224° at .050"
  • Intake Lift .325" (.520" lift at 1.6:1 rocker ratio)
  • Exhaust Lift .335" (.536" lift at 1.6:1 rocker ratio)
  • 116 Lobe Separation

    You Were Correct They Are 1.6 Rockers
 


Okay Thats What I Thought... I Changed That Also Actually Twice Just To Rule It Out.... It Honestly Sounds Like A Tractor at Low Idle Real Choppy Then Idles To Almost 500 RPM and Then Just Up And Dies
 
97Luminaltz said:
  • 212°/224° at .050"
  • Intake Lift .325" (.520" lift at 1.6:1 rocker ratio)
  • Exhaust Lift .335" (.536" lift at 1.6:1 rocker ratio)
  • 116 Lobe Separation

    You Were Correct They Are 1.6 Rockers
Click to expand...

Those are the specs WITH 1.6:1 ratio rockers (which are stock ones)

If you have 1.9's, then that changes the ballgame you're playing...and you'll need milled valve guides to run those rockers.
 
I Am Tryin To Add A Video But Wont Let Me I Cant Even Add Pictures!! I Jerked The Valve Cover Just To Make Sure And I Was Correct There 1.9 (I Am Going Threw My Parts List As We Speak) Maybe It Is Just Fuel Pressure Regulator??? Just Came To Mind Is All
 
97Luminaltz said:
I Am Tryin To Add A Video But Wont Let Me I Cant Even Add Pictures!! I Jerked The Valve Cover Just To Make Sure And I Was Correct There 1.9 (I Am Going Threw My Parts List As We Speak) Maybe It Is Just Fuel Pressure Regulator??? Just Came To Mind Is All
Click to expand...

Did milling the guides mean nothing here?

If you don't have clearance for the maximum lift you're getting with those rockers and cam, why are you trying to replace other parts when you haven't answered if the heads are clearanced for your current valvetrain setup?
 


I am positive that they were car wouldnt run right if it was the other way... like i said i put over 8000 miles on this whole set up and just started having these issues
 
so i used a scanner and once again its only telling me that my O2 sensor is bad or what not and that i have no A/C connection..... maybe its time to just toss in the towel and buy a mopar....
 
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