Blinking ses light at WOT - FirebirdV6.com/CamaroV6.com Message Board

Announcement

Collapse
No announcement yet.

Blinking ses light at WOT

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • #16
    No, no other symptoms, just a hard start when cold, have to hit the gas pedal to get it to stsrt and idle but when warm it starts fine. I really think my fuel pressure is good since I dont go lean or anyyhing on my wideband.
    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 ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

    Comment


    • #17
      Fuel pressure is good, heres a couple of pics of the gauges. Will find out tomorrow if I have a blinking light or not.
      Attached Files
      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 ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

      Comment


      • #18
        What is your fuel pressure at key on engine off after the car has been sitting a number of hours? What is the fuel pressure at idle? and what is the fuel pressure when driving and under WOT? You said it is fine, but what are the numbers? Don't diagnose fuel pressure by wideband numbers.

        Check all of your wiring - spark plug / fuel injector harness. Have you checked for vacuum leaks especially around your manifold? I know you had water getting into the engine on rain falls, maybe this is part of the problem with a vacuum leak?

        How old are your plugs/wires/coils?

        2002 SOM Z28 Camaro
        1996 3800 camaro- Gone - still the fastest N/A Canadian 3.8L F-body
        V6 best: 13.43 @ 100.77 mph


        My Current Build | Synthetic Oil | Videos

        Comment


        • #19
          Plugs, wires, coils ,icm is all new. Fuel pressure is 44psi at idle, goes up alittle when I rev it. Will check wot tomorrow when i take it out, was out just a bit ago looking at the lights on the gauges and check for codes and the po1107 came back so im stumped with the map codes.
          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 ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

          Comment


          • #20
            Originally posted by LETZRIDE View Post
            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.
            Did you test each of the 5 steps above? Since your MAP code is back I have a feeling you are wire related - that's your common piece in this all

            2002 SOM Z28 Camaro
            1996 3800 camaro- Gone - still the fastest N/A Canadian 3.8L F-body
            V6 best: 13.43 @ 100.77 mph


            My Current Build | Synthetic Oil | Videos

            Comment


            • #21
              Originally posted by LETZRIDE View Post

              Did you test each of the 5 steps above? Since your MAP code is back I have a feeling you are wire related - that's your common piece in this all
              No, just the .5 volts on the map harness , ill check the others tomorrow, thanks again.
              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 ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

              Comment


              • #22
                Car ran good no blinking ses light , fuel pressure at wot was 48-50 psi , not bad for a 16 year old Walbro 255 pump. So next thing im going to drive into the next city 35 miles one way to see how it does. Still checking on the map sensor.
                Last edited by ssms5411; 03-14-2018, 04:51 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 ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

                Comment


                • #23
                  a lot of guys back in the day would use hptuners and turn off the PO300 code so it never displays SES light when they cammed the car. The map sensor stuff though shouldn't be related to it. Could be a bad/corroded wire or spot in the harness giving you headaches.

                  Comment


                  • #24
                    Fixed the po300, was a vacuum leak, got a new harness and found my spare pcms so im going to try that.
                    Last edited by ssms5411; 03-26-2018, 04:43 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 ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

                    Comment


                    • #25
                      awesome yea, those vacuum lines are getting a little "aged" by now haha

                      Comment


                      • #26
                        where was the vacuum leak located?

                        2002 SOM Z28 Camaro
                        1996 3800 camaro- Gone - still the fastest N/A Canadian 3.8L F-body
                        V6 best: 13.43 @ 100.77 mph


                        My Current Build | Synthetic Oil | Videos

                        Comment


                        • #27
                          Originally posted by LETZRIDE View Post
                          where was the vacuum leak located?
                          It was on the TB on 96's theres a big vac. Line where the evap connected to i had a rubber plug on it but it cracked and came completely off, i just filled the fitting with gasket maker, been doing awesome. Still trying to narrow down the map codes, have to pull the STB everytime I'm in there.
                          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 ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

                          Comment


                          • #28
                            So replaced the pcm, still no luck. Will have to track down the short somewhere. Will try the steps Mike suggested, I hate to get in there though, its a killer on my back.
                            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 ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

                            Comment


                            • #29
                              So im going to try jumping the circuit with a paper clip to see if im getting a input to the pcm, then ill check the ground while im at it, worse case scenario is ill have to run a wire or 2 from the pcm to the map.
                              Last edited by ssms5411; 04-11-2018, 04:05 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 ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

                              Comment

                              Latest Topics

                              Collapse

                              FORUM SPONSORS

                              Collapse
                              Working...
                              X