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  • Blinking ses light at WOT

    So the last few times taking the Camaro out I get a blinking ses light at Wot. Then it goee back off, doesnt seem to be misfiring. Actually running good, Any ideas?
    Last edited by ssms5411; 12-10-2017, 12:40 PM.
    08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
    96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

  • #2
    Need to read the code - it's still logged in the PCM.
    Robert - owner www.FirebirdV6.com "Mid-life crisis? I'm way beyond that!"

    1996 Black Firebird GTxxxRam Air V6 w/ M5xxxwww.FirebirdGT.com

    Raven

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    • #3
      Yeah , it comes up as a po300 random misfire but its not missing as far as i can tell. It throws a po300 at idle too but its not missing, i think its do to the vs cam and 1.7 rockers, i know on ZZP website they say it can cause a po300 at extended idle for long periods. But the blinking ses light is new, actually started after i fixed the icm wiring. My mechanic said it might be the TPS sensor, so i ordered a new tps sensor and another harness for the tps since the original is pretty worn out after 22 years. Should get them this week.
      Last edited by ssms5411; 12-10-2017, 01:59 PM.
      08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
      96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

      Comment


      • #4
        Got the TPS sensor and harness , put them on and still getting the blinking ses light, car runs good any ideas? Still get the po300 stored in the pcm? But its not misfiring as far as i can tell, put some seaform in the gas tank hoping its a clogged injector or something.
        08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
        96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

        Comment


        • #5
          So I had hptuners scanner on the car, and it showed my B2 O2 sensor was pretty much dead. And looking online , it says it can cause a blinking ses light, so i hope this solves the problem. Ordered 2 new O2 sensors since its good to replace them in pairs, these are the front O2s. Ill post the results when i get them in.
          08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
          96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

          Comment


          • #6
            replace the O2 sensor...are you getting and kr while this happens? When my valves were sticking on the one cylinder I had KR but it would pickup missfires like crazy that I couldn't track down at the time

            2002 SOM Z28 Camaro - 12.9 @ 104 mph
            1996 3800 Camaro - 13.43 @ 100.77 mph


            Project Cars | How To Guides | Scratch Repair | Synthetic Oil

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            • #7
              Nope, no KR, my knock sensors are desensitized by 40% been like that for 15 years now but they still pick up any KR. Should get the O2s this week.
              08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
              96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

              Comment


              • #8
                Well replaced the O2 sensors on the front and no more blinking ses light or random misfire code. Im happy.lol
                08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
                96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

                Comment


                • #9
                  So the blinking ses is back , still showing a random misfire also have a po107 and po1107 map sensor, replaced it and their still popping up , car runs fine, no hesitation or anything. Any ideas?
                  08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
                  96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

                  Comment


                  • #10
                    Checked the connector and it has .5 volts, no po300 code at idle just the po107 and 1107, so im going to try another map sensor to rule that out, also have a fuel pressure gauge coming so i can narrow it more.
                    08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
                    96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

                    Comment


                    • #11
                      PO107 is a manifold absolute pressure/Barometric pressure circuit Low Input

                      From https://www.obd-codes.com/p0107

                      Symptoms include:
                      • Hard to start
                      • Long cranking times Sputtering/missing
                      • Blowing black smoke
                      • Poor fuel economy
                      • Dies intermittently MIL(Malfunction Indicator Lamp) illumination
                      Causes:
                      • Bad MAP sensor
                      • Open or short in the signal circuit
                      • Open or short in the 5 Volt reference circuit
                      • Ground circuit open or shorted
                      • Bad PCM
                      Solutions:

                      First, using a scan tool with the Key on and engine running, monitor the MAP sensor voltage. If it is reading less than .5 volts, turn engine off, unplug the MAP sensor and, using a DVOM (Digital Volt/Ohm Meter) check for 5Volts on the 5 Volt reference circuit. - You said you did this and had 5 volts? See below as you need to check two spots:
                      1. If there is not 5 Volts on the reference circuit, then check for the reference voltage at the PCM connector. If it is present at the PCM connector but not the MAP connector, repair the open in the reference circuit between the PCM and MAP harness connector. If 5 Volt reference is NOT present at the PCM connector, check powers and grounds of PCM and repair/replace as needed. (NOTE: On Chrysler products, a shorted Crank sensor, Vehicle speed sensor or any other sensor that utilizes the 5 Volt reference from the PCM can short out the 5 Volt reference. To fix simply unplug each sensor one at a time until the 5 Volt reference reappears. The last sensor unplugged is the shorted sensor.)
                      2. If you have a 5 Volt reference at the MAP connector, jumper the 5 volt reference circuit to the signal circuit. Now check the MAP voltage on the scan tool. It should be 4.5 to 5 Volts. If it is, replace MAP sensor. If not, repair open/short in the signal circuit wiring and re-check.
                      3. If all appears okay, perform a wiggle test. Start engine and manipulate the harness, connector and tap on the MAP sensor. Note any changes in voltage or engine speed. Repair connector, harness, or sensor as needed. - Steve I had this problem in my jeep and it took forever to diagnose with my EVAP sensor.
                      4. If the wiggle test checks out, use a vacuum pump (or just use your lungs) to draw a vacuum on the MAP sensor vacuum port. As you add vacuum the voltage should decrease. With no vacuum, the MAP sensor should read approximately 4.5 volts. If there is no change in MAP sensor reading on the scan tool, replace MAP sensor.

                      2002 SOM Z28 Camaro - 12.9 @ 104 mph
                      1996 3800 Camaro - 13.43 @ 100.77 mph


                      Project Cars | How To Guides | Scratch Repair | Synthetic Oil

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                      • #12
                        P1107 is also a low circuit code - I would lean towards your issue being in the wiring or at the connector at the moment.

                        2002 SOM Z28 Camaro - 12.9 @ 104 mph
                        1996 3800 Camaro - 13.43 @ 100.77 mph


                        Project Cars | How To Guides | Scratch Repair | Synthetic Oil

                        Comment


                        • #13
                          Gives me something to look for, thanks Mike. Already ordered the new sensor it was $47 from Rockauto, if my other one is still good , ill just send the new one back for s refund.
                          08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
                          96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

                          Comment


                          • #14
                            Got the map sensor in, haven't driven it yet but no more map codes in pending but still a po300 in pending, will drive it Wednesday to see if i still have a blinking ses light. Installing my shift glow fuel pressure gauge tomorrow.
                            08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
                            96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

                            Comment


                            • #15
                              is the car having any other symptoms?

                              2002 SOM Z28 Camaro - 12.9 @ 104 mph
                              1996 3800 Camaro - 13.43 @ 100.77 mph


                              Project Cars | How To Guides | Scratch Repair | Synthetic Oil

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