new throttle body/check engine light
06-18-2007, 04:01 PM
#1
1st Gear Member
Thread Starter
Join Date: Aug 2006
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Posts: 97
new throttle body/check engine light
Hey Guys,
Im about to buy an after market 70 mm throttle body for my 99 GT stang. I called the Ford service center to purchase their ownSVO throttle body and the mech said that the check engine light will come on and stay on after it is installed. Has anyone else experierenced this problem after installingyour after market throttle body?
Thanks,
Techsent
Im about to buy an after market 70 mm throttle body for my 99 GT stang. I called the Ford service center to purchase their ownSVO throttle body and the mech said that the check engine light will come on and stay on after it is installed. Has anyone else experierenced this problem after installingyour after market throttle body?
Thanks,
Techsent
06-18-2007, 04:48 PM
#4
3rd Gear Member
Join Date: Aug 2006
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RE: new throttle body/check engine light
I haven't heard of a TB causing a check engine light before. Don't know about the SVO (can't say I have heard of it before)but the frpp 70mm does not cause a cel that I have ever heard of.
06-18-2007, 07:29 PM
#5
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
RE: new throttle body/check engine light
The dealer is full of it--there's nothing about a TB swap (properly installed of course) that would cause a DTC. However, make sure you disconnect the battery after installing ot to reset the adaptive memory and make the PCM relearn the idle speed...
06-18-2007, 07:35 PM
#6
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RE: new throttle body/check engine light
he might think (dunno why) it will affect the MAF. dozens and dozens of people have done the TB and plenum swap on this forum. Not once have i ever heard of a properly installed TB and Plenum combo triggering the CEL. A CAI, once in a while but not a TB + Plenum
06-18-2007, 08:39 PM
#9
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
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RE: new throttle body/check engine light
Actuallywith the newer ones (from '99 to '04 I amd sure) there is no adjustment needed because the PCM establishes a base voltage reference as the lowest TPS output since startup; and since it knows the angular rate of resistance change it can determine % of opening and WOT from that baseline. [/align][/align]They can (and do) still wear out of course, however the PITA of adjusting them is gone...[/align]
06-18-2007, 09:18 PM
#10
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Join Date: Jan 2007
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Posts: 358
RE: new throttle body/check engine light
ORIGINAL: cliffyk
Actuallywith the newer ones (from '99 to '04 I amd sure) there is no adjustment needed because the PCM establishes a base voltage reference as the lowest TPS output since startup; and since it knows the angular rate of resistance change it can determine % of opening and WOT from that baseline. [/align][/align]They can (and do) still wear out of course, however the PITA of adjusting them is gone...[/align]
Actuallywith the newer ones (from '99 to '04 I amd sure) there is no adjustment needed because the PCM establishes a base voltage reference as the lowest TPS output since startup; and since it knows the angular rate of resistance change it can determine % of opening and WOT from that baseline. [/align][/align]They can (and do) still wear out of course, however the PITA of adjusting them is gone...[/align]