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The Benefits and Innerworkings of Throttle-By-Wire
A simple cable linking the gas pedal to the throttle plate just wasn’t good enough for engineers, who have now complicated the design with throttle-by-wire. Why do engineers do these things to us?...
View ArticleAcura: Intake Leak Code P2279 Set After Throttle Body Cleaning or Replacement
Models: Acura models with throttle-by-wire or ETCS. Condition: If you have just cleaned the throttle body and now you’ve a fluctuating idle and code P2279 (intake air system leak), the problem could be...
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Throttle-By-Wire Codes: P1512 On 2002 GMC Envoy
Figure 1: TP data being viewed again at Key On, Engine Off. The PCM continuously monitors the commanded and actual throttle positions. The commanded throttle position is compared to the actual throttle...
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Inside Throttle-By-Wire
A simple cable linking the gas pedal to the throttle plate just wasn’t good enough for engineers, who have now complicated the design with throttle-by-wire. Inside Throttle-By-Wire The TAC motor turns...
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Idle And Throttle-By-Wire Systems
With carburetors, idle was a set RPM number that depended on the angle of the primary’s throttle. During a tune up, idle was set with a screwdriver. Also set was the fast idle cam that changed the...
View ArticleVIDEO: Resetting Throttle-By-Wire
Jason Stahl discusses the best and safest way to reset a throttle-by-wire system. Sponsored by Standard. The post VIDEO: Resetting Throttle-By-Wire appeared first on UnderhoodService.
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Diagnosing Throttle-By-Wire Problems
Until relatively recently, engines (and vehicles in general), have primarily operated via mechanical methods. Things we thought would never become digitized have become just that. Such is the case...
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Throttle-By-Wire: More Than Just A Throttle Butterfly
Swapping one throttle-by-wire unit for a new unit in hopes of resolving a code or limp-mode problem is not an option due to the high price and strict manufacturer return policies. Instead, being able...
View ArticleVIDEO: Throttle Body Not Working? Try A Scan Tool
Throttle-by-wire has been a standard item on most cars and trucks for more than a decade. But installation is not a plug and play procedure for some vehicles. In this video, Andrew Markel discusses...
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Diagnosing Throttle-By-Wire Limp Modes
If you drove a vehicle from the late 1990s with traction control, you might recall the systems were not that smooth. Most of these systems cut spark or fuel instead of changing the angle of the...
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Electronic Throttle Body Service
The electronic throttle body is very similar to the cable-operated throttle body, with a few notable changes. Among the most noticeable is the addition of the throttle actuator control motor. This...
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