Question about Chevrolet Astro

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Check engine light on for TPS. replaced TPS and the light comes back on with TPS code. put new pig tail on and checked with volt meter and it is ok . light is still on

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  • Chevrolet Master
  • 14,363 Answers

What year,make,model and engine size do you have,you may need a scan tool .

Posted on Dec 06, 2012

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6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
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Posted on Jan 02, 2017

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SOURCE: Misfire

One question, have you replaced the ECTS (Electronic Cooling Temperature Sensor)? These cause no end of different seemingly unrelated problems on Saturns. Peice is about ten bucks and is an easy install. Just search on youtube for a how-to video. Even if that's not the problem it is reccommended to replace this peice just the same as they ALL end up going bad at some point.

If that's not a fix, start pulling plugs. Check to see if they're correctly gapped and if they have any damage/corrosion. If you're running Platinum plugs, immediatly change to a copper plug as Platinums have no place in these motors. Most people have the best luck with NGK copper.

Check to make sure that your plug wires haven't been crossed. This sounds like a plug or wire issue most likely so it has to be in that family, if the plugs are good, wires good and not crossed, sensors are fine, then time to replace your coil packs. If you've replaced everything up to the coil packs then that is most likely the cause of your dillema.


Posted on Oct 25, 2008

  • 1 Answer

SOURCE: Check engine light keeps coming on. Its giving me a code p0171.

replace your gas cap.

Posted on Aug 04, 2008

  • 39 Answers

SOURCE: TPS

turn on car and use voltmeter on the sensor get the base reading then get a reading with the throttle partly opened and see if it increases or what. it could be faulty, if it is not within spec then get a new one, unplug the batter negative terminal and install new sensor. reconnect everything and you shuold be on your way!

Posted on Feb 06, 2009

nate6556
  • 103 Answers

SOURCE: 2004 colorado code p0172

check your gas cap. If you fill your gas while the vehicle is running, it will also cause your light to come on. Go to OReilys or Autozone and they will shut it off for free and tell you the problem

Posted on Jul 25, 2009

  • 1 Answer

SOURCE: 2001 Volvo s80 T6, the tail lights are not

it is a relay marked M15 in REM (rear electornic module). open the side panel in the trunk on the left hand side of the car. there is a rectangular panel (@ 7" x 9") full of fuses and cubes and card modules. in the middle vertically, and toward the front of the car (your right, looking at it) of this panel are the relays, 4 rectangular cubes 7/8"l x 1/2w"x 1" deep. sockets are marked M17 M16 M15 M14, but you can only see the M17(top) on my car because the socket is empty (the other relays cover their respective marking). M16 is the relay for the rear fog lamps. pull this one out (these are in tight so you have to rock it back and forth or gently pry),
pull the one below M15 and replace it with the one you took from M16. your fog lights won't work, but your brake lights will. I'm told the relay is about $20, I haven't bought one yet though cause this fix worked. i read this on another site. it was from a certified volvo mechanic.

Posted on Dec 19, 2009

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Hey,I have an 03 chevy s10,I recently tried putting a pig tail on it (straight wired) and had no luck,gave up and crimped all the wire back together,and today a guy at work noticed I had no taillights,but...


I would check your tail light fuse first then test the brown wire in the tail light harness where you origionally cut into it. With the lights on there should be around 12v on it. if not you may have pulled the wire too hard and broke it upstream. Test to see if there is 12v at the fuse ad if there is, your trouble should be in the wire between the fuse and the spot where you cut into it.

Mar 25, 2013 | Cars & Trucks

1 Answer

Check engine light on with the TPS code. replaced TPS and pig tail and it checked out OK with volt meter. The light still comes back on with the TPS code


Check engine light comes on and off, these are indication that there is some error code stored in your vehicles ECM. The engine module computer needs to be scanned. These will give the code and as per the error code the further problem can be detected and confirmed. The engine light indicator blinks or remains steady on dash when engine computer noticed any problem with any engine electrically operated components.


For more help, I suggest you to refer the help links provided below. These will let you know more about which areas to look, check, when there is engine light coming up on dash panel.

---------

Click the link below: -------

CHECK ENGINE LIGHT


http://alltypesofpartsreplacing.blogspot.com/2012/12/check-engine-lightengine-warning-light.html

---------------

Check Engine Light Reset Procedure?
http://whoisbyme.blogspot.in/2012/06/check-engine-light-reset-procedure.html
----------
These will help.
Thanks.

Dec 06, 2012 | 1999 Chevrolet Astro

1 Answer

Po123 04 kai


Hello www_ropesmor,

This code P0123 is Throttle position sensor circuit high input.

There four basic reasons for this code.

1. An open or short to ground between the TPS (throttle position sensor) and the ECM (Engine control module).
2. A short to battery voltage between TPS and the ECM.
3. A short between the TPS wires.
4. A faulty TPS.

See below for connector diagrams.

First, with scan tool monitor TPS with throttle closed voltage should be
I f you don't have a scan tool, back probe terminal 1with a volt meter to ground and you will see the voltage as outlined above otherwise follow the steps below.


1.Check to see if there is about 5 volts at the TPS; with engine off key on disconnect the TPS back probe the harness side terminal 3 to ground with a volt meter if there is about 5 volts go to step 2 if about 5 volts if not repair the 5 volt circuit.

2. Probe the harness side terminal 2 to chassis ground with a volt meter, if voltage above .02 repair circuit 2 short to voltage. If voltage is .02 volts or below go to step 3.

3. Probe the harness side terminal 1 to ground with volt meter if below .5 volts go to step 4 if not repair short to battery between TSP harness and ECM connector

4 Turn the ignition off and disconnect the ECM connector . With an ohm meter measure the resistance between the ECM (terminal C18) and TPS ground circuit it should be below 1 ohm. Measure the resistance between the ECM (terminal C8) and TPS signal circuit it should be below 1 ohm. If not repair the open circuit.

After faulty circuit is found and repaired clear code and verify repair.

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I hope this helps.

Regards,

netvan

Aug 15, 2011 | 2004 Kia Optima

1 Answer

P0120 P0220 faults on a 03 Avalanche. First went into reduced power mode. Cleared faults. Truck still will not go over 35 mph. Did not trip the check engine light.


this is an obd2 trouble code table, it can help you understand the meaning of code.
for p0120,
the possible solutions:
If you have access to a scan tool, with KOEO (Key on engine off) observe the TPS voltage. With throttle closed, voltage should be about .45 volts. It should gradually sweep upwards to approximately 4.5 to 5 volts as you depress the throttle. Sometimes only a scope can capture an intermittent glitch in the TPS signal voltage. If you notice a glitch in the TPS sweep voltage, replace the TPS.
NOTE: Some TPS sensors require fine adjustment. If you aren't comfortable with using a DVOM (Digital Volt Ohm meter) to adjust the new TPS, then it's best to take the vehicle to a shop. If the voltage is not .45 volts (+or- .3 volts or so) with the throttle closed or if the reading is "stuck" then unplug the TPS connector. With KOEO check for 5 volts reference voltage present at the connector and a good ground. You can check the signal circuit for continuity by jumping a fused wire between the ground circuit of the TPS connector and the signal circuit. If the TPS reading on the scan tool now reads zero, then replace the TPS. However if that doesn't change the reading to zero, then check for an open or a short on the signal wire and if none is found, suspect a bad PCM. If manipulating the TPS wiring harness causes any change in idle, then suspect bad TPS.

Jul 20, 2011 | Chevrolet Avalanche Cars & Trucks

1 Answer

I was wiring a trailer pigtail to an 06 wrangler and blew the turn signal bulbs but the fuses are good. I have running and reverse lights but no brake lights or turn signals


If the bulbs and the fuses are good, check the brake light switch. You might of shorted out the switch when working on the pig tail. Always use a test light or volt meter when installing pig tails. This way you can check for power and ground before hooking a wire up to help prevent shorts. But by what you have said it does sound as if the brake light switch is now bad.

Jun 27, 2010 | 2006 Jeep Wrangler

1 Answer

None of my brake lights are working, but the taillights do work. Would this be a fuse issue or something else


Make sure the switch at the bottom of the brake pedal is not bad. Pull a bulb out of the tail light have someone use a volt meter, while you press the brake, check to see if you have voltage at the pig tail.

Feb 04, 2010 | 2000 Jeep Grand Cherokee

2 Answers

AP Sensor Serviceable?


no not difficult for weekend mechanic ,just awkard and finger crunching

Dec 27, 2009 | 2001 Hyundai XG300

1 Answer

Passenger High beam/Running light in 99 Cavi wont work


With the engine and lights off check the other light that is working with an ohm meter and determine which wire is the ground. Then check the same wire on the light that is not working and see if it is grounded. If it isn't, you can probably use the one good ground for both lights. The plug you mentioned is usually called a "pig tail" (I don't know why-doesn't look like one...) and it might still be bad. Or the ground connector is bad. The point is with the lights off the vehicle and apart, use the ohm meter to check out the pig tail and eliminate it.

May 03, 2009 | 2000 Mercury Cougar

1 Answer

95 ford f-250 4.9 engine


no you need to get service key reset ok m8

Jan 03, 2009 | 1995 Ford F250

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