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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: rameye on August 07, 2017, 09:12:41 AM

Title: Dump the Pump?
Post by: rameye on August 07, 2017, 09:12:41 AM

I was querying my local inspector/mechanic about my new wreck (1987 V-10) and he said in my area, after 20 years there is no emission requirement, they dont look, dont care, told me I could pretty much go hog wild.

 I did some searches on this board about removing the smog crap.

Still have some unanswered questions--

 If I go for some shorty headers with an 02 sensor bung welded in..will the computer post a code??

 Does the computer monitor the smog pump or anything else in the system that it would trip??

 Any other pit falls??

 I plan on keeping the parts handy..got the belt situation figured out..  Im assuming the 02 sensor will tune the TBI accordingly

 Many Thanks
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Title: Re: Dump the Pump?
Post by: Captkaos on August 08, 2017, 12:41:47 PM

If you are keeping the TBI you need the 02, it uses that to keep the fuel mixture accurate. 

Title: Re: Dump the Pump?
Post by: rameye on August 08, 2017, 02:13:11 PM

Thanks Chris..yeah I plan on keeping the TBI-- always been a rock solid unit---

Just didnt know if the computer would post a code trying to turn on the pump, look for pump output pressure,  or actuate a relay valve downstream...find it missing... and post a code

Thanks for the reply