Lean Cylinder and Long Tubes *Pictures*

Rickyll7

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Dec 16, 2005

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Dec 21, 2006

#1

• Dec 21, 2006

• #1

Passenger side head. Left cylinder appears lean. Vince, my mechanic, noticed this when installing my longtubes and is now testing the injector to see if its just not spraying long enough. He said that the spark wire is a little rusty and the computer may be toast. The injectors are new frpp 24 lb. What do yall think?

 

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Tape

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Dec 21, 2006

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Dec 21, 2006

#2

• Dec 21, 2006

• #2

Computer should be fine, did you drive it to the shop and was it still running correctly?

 

Rickyll7

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Dec 21, 2006

#3

• Dec 21, 2006

• #3

runs fine. been driving it like that for a year. not sure when the lean condition began though.

 

Tape

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Dec 21, 2006

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#4

• Dec 21, 2006

• #4

seems like you caught it just in time! running lean is not a problem but too lean is! Computer is fine.

 

Rickyll7

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Dec 21, 2006

#5

• Dec 21, 2006

• #5

so how do we know the computer is fine?

 

Tape

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#6

• Dec 21, 2006

• #6

if the computer was bad you wouldn't have drove it to the shop.

 

Rickyll7

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Dec 21, 2006

#7

• Dec 21, 2006

• #7

yea, but when some electronics go bad, they dont completely stop working. i mean it is possible that the computer is causeing this. bad injector aside, how else could thid be explained? im just trying to think of everything that could cause this so i can properly diagnose the problem without jumping to conclusions. Thanks

 

Tape

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Dec 21, 2006

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Dec 21, 2006

#8

• Dec 21, 2006

• #8

I wouldn't jump either, I would wait to see what your mechanic says about the injector, could be the coil, it's a waiting game till then. The computer is pretty durable, computers don’t go bad as much as you would think.

 

Rickyll7

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Dec 21, 2006

#9

• Dec 21, 2006

• #9

Vince checked the injector and spark, all looked to be good. must be something that is occuring intermittently. hopefully it turns up when it gets tuned after the 1st... but the longtubes sound awesome!

 

hotmustang331

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Dec 21, 2006

#10

• Dec 21, 2006

• #10

Wow, that looks crazy....I would almost think its throwing ray gas through the cycliner and not firing at all....and the gas is cleaning the exhaust port. It would take some time for the port to just go white from a lean condition IMO.

 

Rickyll7

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Dec 22, 2006

#11

• Dec 22, 2006

• #11

what is ray gas??? anyway, i did run some seafoam about 2 weeks ago, but i dont think this is the issue as this is only apparent on one cylinder, the other 7 look just like the 2 on the right. also, the engine is not misfiring.

 

LaserRed01GT

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Dec 22, 2006

#12

• Dec 22, 2006

• #12

Are the injector constants and offsets set properly for the 24 pounders?

 

Tape

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Dec 22, 2006

#13

• Dec 22, 2006

• #13

btw, how did that plug look?

 

urban96

bubb rubb says:"woo woooooo"

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Dec 22, 2006

#14

• Dec 22, 2006

• #14

Rickyll7 said:

what is ray gas??? anyway, i did run some seafoam about 2 weeks ago, but i dont think this is the issue as this is only apparent on one cylinder, the other 7 look just like the 2 on the right. also, the engine is not misfiring.

Click to expand...

i think he ment raw. unburnt fuel