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

more OBD II trouble codes

Old Mar 14, 2003 | 02:23 AM
  #1  
blown383's Avatar
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more OBD II trouble codes

I finally slapped the car back together and took it out for a drive. Now I have a VERY pronounced stumble around 1800rpm...its like when a person trips over a telephone wire and continues on their way. Its like that in any gear...I'm going to recheck the #8 spark plug wire because thats the only one that I took off.

I tried using some RTV around the header gasket where the last bolt broke on the passenger side exhaust manifold. Well...I guess its doing okay becuase there is a slight ticking noise. While driving around I got a SES light and it turns out to be a P0100 code again! Which is insufficient MAF activity. What would cause this to happen? My stock MAF brought up the same code before I borrowed a friend's Granatelli MAF. That MAF ran good for about a 3-4 weeks now. So what gives?



-B
Old Mar 14, 2003 | 08:26 PM
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blown383's Avatar
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ttt
Old Mar 30, 2003 | 06:37 PM
  #3  
(Ken) 96 K1500S's Avatar
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Re: more OBD II trouble codes

Originally posted by blown383
I finally slapped the car back together and took it out for a drive. Now I have a VERY pronounced stumble around 1800rpm...its like when a person trips over a telephone wire and continues on their way. Its like that in any gear...I'm going to recheck the #8 spark plug wire because thats the only one that I took off.

I tried using some RTV around the header gasket where the last bolt broke on the passenger side exhaust manifold. Well...I guess its doing okay becuase there is a slight ticking noise. While driving around I got a SES light and it turns out to be a P0100 code again! Which is insufficient MAF activity. What would cause this to happen? My stock MAF brought up the same code before I borrowed a friend's Granatelli MAF. That MAF ran good for about a 3-4 weeks now. So what gives?



-B
Had the same problem in my truck with a GMAF if you are running a K&N air filter you will need to clean the sensor wires on the MAF as they get coated with the K&N oil...I have to do mine every few months...I use denatured alk and a q-tip...after that you will need to reset the ecm with a battery disconnect.

Ken
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