Missing and no boost

[Hydecotsi]

Okay we'll I went to the track with a new slow boy racing 16g...made a pass cut the car off when it was time to leave I started it up to this bad noise...well long story short the turbo went out after 4 passes....I swapped on. 16g evo 3 turbo and got everything together and took,it for a spin....it will build about 3psi and then starts missing and loses all boost...the funny thing is I changed the plugs and wires and it still is missing even at idle but takes the gas fine if it teaches anything over 4k even in neutral it starts missing and the after a few mins of idle time it picks back up...I also tried swapping the o2 sensor still no luck I tried a boost leak test and that was fine.....it has a safe on it and all setting are set correct I'm puzzled anyone that could help it would be really appreciated thanks

 

[jed344]

Did you put the correct plugs in and gap them?

 

[Hydecotsi]

Yes correct plugs and gapped to .28 I wanna say plugs wer ngk bpr8hs I think don't hold me to that

 

[manifestmessiah]

Doesn't sound right. You need to run bpr6es or bpr7es gapped at .028

http://www.dsmtuners.com/forums/frequently-answered-dsm-questions/233421-spark-plug-faq.html

 

[Hydecotsi]

That's them their 6es sorry

 

[jed344]

6s and that gap would b just fine so can rule that out.

 

[Hydecotsi]

Any other ideas

 

[thejollyrancher]

Something along these lines is happening to me as well. Mine ended up being my GM maf going out. Have you tested your coil pack?

 

[Hydecotsi]

No I have not tested the coil pack ill get right on that now

Well coil pack was good swapped in one off my running laser and still the same problem

 

[thejollyrancher]

Turned out to be an ecu issue for me. Swap your ecu with a known working one.

 

[Hydecotsi]

Turned out to be an ecu issue for me. Swap your ecu with a known working one.

I ended up,getting it fixed....we changed the ecu the day before your post and all is good now runs great pulls hard so it's back on the road.. Thanks for the help