Tools Required ECU Manager V1.13.X ECU Manager 1.13.1 Features and changes: Added Pro Plugin R34 GT-t support Added Tool bar buttons for Main Setup, Table Setup and Units Added threshold to Light display gauge to enable once the threshold is exceeded MAF Limit table was not displayed when using Lambda Correction and has been corrected. Do not attempt to separate the pulley from the balancer hub. The Caspers Electronics TPS Breakout Adapters are used anytime you need to tap into the TPS sensor for testing, calibration or any other reason. Stay up to date with the latest Underhood Service news. This hole does not aid in the alignment of J 38197-2, like the dimple on the previous designed crankshaft balancer. Where did you find that you need to push the gas pedel to the floor to set the tps on the gmt 400 vortec? J 38197-1 Pilot Screw J 38197-4 Puller Screws (Silver) Listen to the latest Underhood Service podcast. Sensors and out puts calibration Let's start with the basic check list: 1. uses the same tps as the 5.7 vortec. (See the sidebar at the end of this article). J 37096 Flywheel Holding Tool Remove the crankshaft balancer using J 38197-A and J 38197-MOD (see Figure 4 on page 30). The throttle position sensor is a simple potentiometer that uses ground and 5-volt reference inputs to produce a varying output signal depending on the position of its detection arm or shaft. a look at the “throttle position sensor” voltage. The following are a few common service repairs for the Series II engine. One of the more frequent problems with modern vehicles is a bad throttle position sensor (TPS). Note: These bolts are 1/4” longer than the previous design. Hold the flywheel using J 37096 (see Figure 3). According to GM, there has been a running design change in the crankshaft balancer. If you’re tracking down a wiring issue, Eautorepair.net is the better choice. One that indicates throttle closed and one that indicates WOT (wide open throttle). The 3800 was completely updated in ’95 when it became the Series II motor that was lower, lighter, smoother and more powerful than any of its earlier variations. The new requirement for the entire GM vehicle line is to calibrate the forward facing camera. At WOT I am getting a .3X. Do you have a GM car between 1980 to 1995? In most cases, their diagrams are right from the factory manuals. GM said some of these vehicles have a condition in which drops of engine oil may be deposited on the exhaust manifold through hard braking. Many car makers including GM started installing fly by wire electronic throttle bodies. The deck height is shorter than the Series I, which reduced its weight and total engine package size. The data is cut-and-paste compatible with HP-Tuners, but can also be reformatted for EFI-Live, SCT, and other popular tuning platforms. The TPS reports the throttle position to the engine control module, which uses the signal to adjust fuel delivery and ignition timing. GM engineers realized that the 3800 would still need a balance shaft to make it suitable for the upscale FWD cars later on. Low mounts in stock today. While the stroke for the 3.8L engine remained at 3.4″ (86 mm), and the bore remained at 3.8″ (97 mm), the engine architecture changed dramatically. 1991 Buick Riviera 3800 L27 The TPS is reading backwards and will not adjust, throwing a constant code 21. (If you already have J 38197, it is necessary to only order the J 38197-MOD). Use the following procedure to properly service the crankshaft balancer on these engines. During these run periods you may see a check engine light. ) After 3 minutes Buick 3.8l was offered in the service manual if you ’... On a 3800 supercharged engine to your Fiero N O Longer offered at FastFieros check! 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