LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

getting closer, but can't go WOT

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Old Aug 23, 2007 | 03:05 PM
  #1  
raroz28's Avatar
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From: Metro Detroit, MI
getting closer, but can't go WOT

So I had a problem with my coolant temp sensor dying out and dumping tons of fuel. Killed my spark plugs.

Replaced the CTS, fixed that, and replaced the plugs because they were fouled.

Car runs so much better, idles perfect, etc... I can only give it 3/4 throttle.

If I go WOT, the car bogs out, then pulls strong, then surges more, etc... Just keeps surging, pulling.

I unplugged the o2 sensors and it didn't make a difference, just made things worse.

I was thinking I may have killed the o2's like I did my plugs.

I can't think of what could be causing it. I have a tune for the mods (bigger injectors, cam, etc...) I put in my old pcm and it runs pretty much the same, so the tune isn't bad.

I'm going to replace the plug wires, because while I had them out, some were burnt up, and I pulled terminals and swapped them on fresh wire, etc...

What else should I look at??? I am not throwing any codes. However, the check gauges light will flash, but the gauges don't do anything when it flashes. Oil pres is perfect, voltage is fine, speedo works, tach works, etc...

I guess it's a misfire. If the wires doesn't fix it, what's next?? I don't have access to any software to watch it in real time.
Old Aug 23, 2007 | 03:13 PM
  #2  
Stl94LT1's Avatar
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From: O'Fallon, MO
Running cats? All that raw fuel might have clogged the cats.
Old Aug 23, 2007 | 03:31 PM
  #3  
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From: Detroit area
The O2's arent used at WOT.I am thinking your wires.Yes flashing SES is a misfire.You are getting closer.
Old Aug 23, 2007 | 04:28 PM
  #4  
raroz28's Avatar
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From: Metro Detroit, MI
Check sig, no cats, ORY.

Joe, the ses light isn't flashing, the "check gauges" light is flashing. BUT, it does only do it when the engine is sputtering. Maybe it flashes with every misfire.
Old Aug 23, 2007 | 05:30 PM
  #5  
Injuneer's Avatar
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From: Hell was full so they sent me to NJ
Check the intake bellows for tears.
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