TPS after installing new throttle body
07-09-2001, 12:00 AM
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TPS after installing new throttle body
I just installed a new motor on my 91 Z28.I have a BBK 52mm TB.After switching every off the the old TB do I need to reset my TPS.Cause it does not seem to want to idle.My new motor is rather x-treme compared to original 305cu.I'm sure the stock chip isn't helping matters none plan on custom programming myself.But thought this would as good a place to start as any.Heres some spece on my motor
355cu 10.23:1cr AFR 190 heads
Mini Ram int
comp xtreme energy cam
.535 int .543ex 218/224
112LSA
SVO 24#inj
headers,no cats,3in exh,flowmaster
355cu 10.23:1cr AFR 190 heads
Mini Ram int
comp xtreme energy cam
.535 int .543ex 218/224
112LSA
SVO 24#inj
headers,no cats,3in exh,flowmaster
07-09-2001, 08:26 AM
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YES, reset the TPS voltage. Put it between .5 and .6 volts. Wait, nevermind. You have a 91 model so the TPS is of the nonadjustable type. You don't have to reset it. Unless you replaced the original with an adjustable model.
bsa
bsa
07-11-2001, 07:10 PM
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Check to make sure the throttle shaft screw (phillips head screw on passenger side) isn't contacting the TP sensor arm. I ran into that with the same BBK TB on my 87 Formula 350. I took a dremel with a sanding roll and ground down a few millimeters of the screw head. It stopped my idle (and trouble code) problems. If that doesn't do it, check for intake leaks at the TB. Good luck with it.
07-12-2001, 11:27 PM
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<font face="Verdana, Arial" size="2">Originally posted by Glenn91L98GTA:
Have you reset the IAC? That is key in maintaining an idle and should probably be reset.</font>
Have you reset the IAC? That is key in maintaining an idle and should probably be reset.</font>
[This message has been edited by chiefz28 (edited July 12, 2001).]
07-12-2001, 11:37 PM
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<font face="Verdana, Arial" size="2">Originally posted by The Dude:
chiefz28,
What cam part number is that?...Sounds like what I am looking for..
Thanks </font>
chiefz28,
What cam part number is that?...Sounds like what I am looking for..
Thanks </font>
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07-13-2001, 04:49 PM
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If it's a new throttle body, have you tried setting the minimum air?
------------------
1989 IROC-Z 5.7L
NOS 150HP kit
ProBuilt 700R4, PI Vigilante 2800 stall lockup
Baer Brakes 12" Sport System
------------------
1989 IROC-Z 5.7L
NOS 150HP kit
ProBuilt 700R4, PI Vigilante 2800 stall lockup
Baer Brakes 12" Sport System
07-13-2001, 10:58 PM
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<font face="Verdana, Arial" size="2">Originally posted by Omar:
If it's a new throttle body, have you tried setting the minimum air?
</font>
If it's a new throttle body, have you tried setting the minimum air?
</font>
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