service eng. codes 35 & 36

[g3ride69]

 

i installed a powerdyne throttle body 1 inch spacer on my 95 gmc burb 2500 7.4l TBI

 

after about 80 miles (while idleing, i put it into gear and my service engine soon light came on).

 

i checked the code's (ground a & b) it blinked 35 and 36.

 

the air sensor and rpm idle sensor...

 

i figure the spacer isn't hurting anything, but how do i get my service light to stay off.

 

i gained almost a full MPG (.9) so i want to keep the spacer.

 

are there any remedies other than black electricle tape over the light???

 

thank you.

 

any replies (private, EMAIL [email protected], or posting.

 

g3ride69

[citydriver]

Dumb question,but did you plug the IAC connector in all the way

You can also check for a vacuum leak,the bolts may have loosened ...a leak would also trigger the codes...also check to make sure that a vacuum line didnt pop off or loosen....if all else fails...disconnect the batt. negative cable 4 a minute to clear the codes and see if they return.....

PS...welcome to the board