Check engine light making me crazy

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Saltydawg56

New Member

Dec 26, 2018

3

0

1

San Diego Ca

Jul 30, 2019

#1

• Jul 30, 2019

• #1

I've put a 5.0 out of 91 Mustang in my 65 Ranchero, running a Painless harness deleting all smog pumps etc, I'm throwing a code #34 which according to my research is a EGR issue, well, I have deleted the EGR valve with block off plate and the circuit plug, the car runs fine but this check engine light is making me crazy, also, the light goes out during acceleration but comes back on as soon as I back off the throttle, any help from the gurus????

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,347

18,081

224

Massachusetts

Jul 30, 2019

#2

• Jul 30, 2019

• #2

The sensor plug should take care of that. Is it fully seated? Where did you get it from?

 

S

Saltydawg56

New Member

Dec 26, 2018

3

0

1

San Diego Ca

Jul 30, 2019

#3

• Jul 30, 2019

• #3

Its fully seated, it's actuallythe second one I've tried, got it a CJ pony I believe, the first one on ebay so thought I'd give a more reputable one a shot, with no change. Whats baffling to me is that the light goes out under acceleration

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,347

18,081

224

Massachusetts

Jul 30, 2019

#4

• Jul 30, 2019

• #4

Saltydawg56 said:

. Whats baffling to me is that the light goes out under acceleration

Click to expand...

Same here. Are you sure it's the code 34 that's causing the light? Erase the codes and go for a drive and run the full code read process...still code 34?

 

S

Saltydawg56

New Member

Dec 26, 2018

3

0

1

San Diego Ca

Jul 30, 2019

#5

• Jul 30, 2019

• #5

34 is the only code thats relevant, with the painless harness the others are deleted