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The Terminator
Engine/Tuning
Another LFP SBTB issue
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<blockquote data-quote="SVT GI" data-source="post: 10448665" data-attributes="member: 81611"><p>First make sure the gasket isn't flipped upside down. There should be a slot in it.</p><p> </p><p>I pulled this from one of my sources:</p><p> </p><p><span style="color: white"><span style="font-family: 'Verdana'">1) Figure out where the PCM is set to idle. Often your tuner will know. If it's not tuned than 600-700 RPMS are a good bet. This will be your target idle RPM. You do not want the Idle air control (IAC) to be fighting the PCM.</span></span></p><p><span style="color: white"><span style="font-family: 'Verdana'">2) Start it up, let it get to temp - this will take 4-5 minutes</span></span></p><p><span style="color: white"><span style="font-family: 'Verdana'">3) Disconnect IAC. If engine stops, turn the throttle-stop screw in one full turn and start it.</span></span></p><p><span style="color: white"><span style="font-family: 'Verdana'">4) Keep messing with this until you get an idle at the targeted RPM.</span></span></p><p><span style="color: white"><span style="font-family: 'Verdana'">5) Shut off the car.</span></span></p><p><span style="color: white"><span style="font-family: 'Verdana'">6) Set KEY ON/ENGINE OFF</span></span></p><p><span style="color: white"><span style="font-family: 'Verdana'">7) Check the Throttle Position Sensor (TPS) voltage with a volt/ohm meter - it should be anywhere from .95 to .99 volts.</span></span></p><p><span style="color: white"><span style="font-family: 'Verdana'">8) Adjust it if it's way off - anything over 1.05 v or so is not good - adjust by loosening the mounting screws, and lightly rotating TPS. If you can't get the volts in line enlarge the mounting holes with a drill.</span></span></p><p><span style="color: white"><span style="font-family: 'Verdana'">9) The TPS wires you use are sometimes the <strong>BLACK </strong>and <strong>GREEN </strong>wire, or the <strong>GRAY/RED </strong>and <strong>GRAY/WHITE</strong>, depending the year.</span></span></p><p><span style="color: white"><span style="font-family: 'Verdana'">10) Turn the key off.</span></span></p><p><span style="font-family: 'Verdana'"><span style="font-size: 10px"><span style="color: white">11) Disconnect negative terminal battery cable. Hit the brake pedal a few times and turn the headlight switch on. Wait 3-5 minutes, then shut off the headlights and reconnect the battery. This clears the Keep Alive Memory where idle settings are stored.</span></span></span></p><p> </p><p><span style="font-family: 'Verdana'"><span style="font-size: 10px">Hope this helps.</span></span></p></blockquote><p></p>
[QUOTE="SVT GI, post: 10448665, member: 81611"] First make sure the gasket isn't flipped upside down. There should be a slot in it. I pulled this from one of my sources: [COLOR=white][FONT=Verdana]1) Figure out where the PCM is set to idle. Often your tuner will know. If it's not tuned than 600-700 RPMS are a good bet. This will be your target idle RPM. You do not want the Idle air control (IAC) to be fighting the PCM.[/FONT][FONT=Times New Roman][/FONT][/COLOR] [COLOR=white][FONT=Verdana]2) Start it up, let it get to temp - this will take 4-5 minutes[/FONT][FONT=Times New Roman][/FONT][/COLOR] [COLOR=white][FONT=Verdana]3) Disconnect IAC. If engine stops, turn the throttle-stop screw in one full turn and start it.[/FONT][FONT=Times New Roman][/FONT][/COLOR] [COLOR=white][FONT=Verdana]4) Keep messing with this until you get an idle at the targeted RPM.[/FONT][FONT=Times New Roman][/FONT][/COLOR] [COLOR=white][FONT=Verdana]5) Shut off the car.[/FONT][FONT=Times New Roman][/FONT][/COLOR] [COLOR=white][FONT=Verdana]6) Set KEY ON/ENGINE OFF[/FONT][FONT=Times New Roman][/FONT][/COLOR] [COLOR=white][FONT=Verdana]7) Check the Throttle Position Sensor (TPS) voltage with a volt/ohm meter - it should be anywhere from .95 to .99 volts.[/FONT][FONT=Times New Roman][/FONT][/COLOR] [COLOR=white][FONT=Verdana]8) Adjust it if it's way off - anything over 1.05 v or so is not good - adjust by loosening the mounting screws, and lightly rotating TPS. If you can't get the volts in line enlarge the mounting holes with a drill.[/FONT][FONT=Times New Roman][/FONT][/COLOR] [COLOR=white][FONT=Verdana]9) The TPS wires you use are sometimes the [B]BLACK [/B]and [B]GREEN [/B]wire, or the [B]GRAY/RED [/B]and [B]GRAY/WHITE[/B], depending the year.[/FONT][FONT=Times New Roman][/FONT][/COLOR] [COLOR=white][FONT=Verdana]10) Turn the key off.[/FONT][FONT=Times New Roman][/FONT][/COLOR] [FONT=Verdana][SIZE=2][COLOR=white]11) Disconnect negative terminal battery cable. Hit the brake pedal a few times and turn the headlight switch on. Wait 3-5 minutes, then shut off the headlights and reconnect the battery. This clears the Keep Alive Memory where idle settings are stored.[/COLOR][/SIZE][/FONT] [FONT=Verdana][SIZE=2][/SIZE][/FONT] [FONT=Verdana][SIZE=2]Hope this helps.[/SIZE][/FONT] [/QUOTE]
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Another LFP SBTB issue
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