I got the cam installed 4 days ago and I didnt get a check engine light untill this morning and Im wondering why now. I know that it is normal to get the light after a cam job I was just wanting to know for the hell of it why 4 days later! Ill have the updated tune in the morning so It will be taken care of.

 

I bet it was a random misfire code. No big deal whan you get a tune that should go away.

 

Lotsa lotsa misfires at idle is the culprit. My light goes out when cruising.

 

if it took 4 days for yours you suck mine jumped on immediately and yeah it is misfires my bro is GM technician told me that when we were done and i have the exact same cam you have (may have had something to do with my heads going it at same time to) and get it tuned quick with check engine on your converter wont lock up and gas gauge pulls a slow drop toward the e but that is definately the problem good luck i just talked to allen at nelson and i know where i am going now hope this helps

 

Yeah he is sending mine out Today so Ill have it in the morning! The weird thing is when I was on the dyno this weekend my buddy had a TECH-2 and everything was fine and this morning when I went outside(remote start is my friend) I could tell the idle was a little rougher! Another cool thing is when I was on the dyno spraying 100 swet shot I(Tech-2) was getting zero detonation and that was at like 30 degree timing at WOT! I was really suprised! I just thought it was weird that 3 days later it came on! Thanks for the help guys!

 

yeah that is weird my bro didnt even need his tech 2 he knew exactly what it was going to be and the coolest thing about the nelson tune is i am getting mine done on site no mail order for me because i am close enough to drive so i am going to get the best tune possible

 

The light actually went off tonite! My buddy who is a gm tech was telling me that it goes through like 6 test not at any certain time and not back to back thats why it took it a few days to come on! Im stoked about getting the tune update tomorrow!

 

code po300

 

It will go on and off. Mine does the same thing. Dammit I need a tune!!

 

Ive been wanting a cam how do you like that cam. What rpm does it start really pulling. Off topic sorry.