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Blew tops of pistons



F that. EGR delete with speed daddy headers. Codes deleted in tuned pcm. Block off plates from zzp.


......"off road use only"
 


So guys i finally got my car back and shes running good. He showed me the old motor turned out to be blown piston rings and a spun bearing. Do you guys have any thoughts? I also have a po134 the front o2. Im thinking he forgot to plug it in to my headers.
 
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Nevermind I see it can still be from a lean condition, or breathing restrictions. I was just hoping is was just from a worn out motor. But so far no codes besides po134.
 
01GrandPrixTURBOGT said:
So guys i finally got my car back and shes running good. He showed me the old motor turned out to be blown piston rings and a spun bearing. Do you guys have any thoughts? I also have a po134 the front o2. Im thinking he forgot to plug it in to my headers.
Click to expand...



Blown rings and spun bearings on top swaps are inevitable I think without a properly built bottom end. Or at least that's what seems to be happening to everyone doing as far as I've read then they build it stronger next time.

P0134 is inactivity on the front sensor so see if it's hooked up. If you can, get a code reader that shows live data or use your tuning software to take a look at what it's doing during idle. Should be bouncing around then lock in somewhat once you hit power enrichment. If not I'd just replace the sensor.

My .02...
 


Just wondering do you guys still think it could be a lean condition. Would checking the plugs for white tips be a good way to tell until I get the gauge.
 
Get a live feed scanner.

Otherwise...ain't gonna do any good sitting here asking questions about things that don't matter when we don't know what is really going on with the car.

SES', LTFT's, carb cleaner the engine while it's running...etc.

Too many things could be wrong.
 


Ok so from what my aeroforce interceptor gauge says my LTFL are 16.4 B1 they did change but i couldnt catch it while driving, My A/F ratio was 14.70 while cruising and 10.0-11.1 WOT
 
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