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  1. Blaise805

    Gross Polluter

    Yay! it passed with flying colors. Thanks guys for not letting me give up. I wasn't really expecting it to pass but what I did was disconnect the fuel pressure regulator and just wanted to see what it blew. The numbers were very good . This must have been like this for along time I used to have...
  2. Blaise805

    Gross Polluter

    So I took some time and looked at each code and checked it out my egr vacuum lines needed to be switched and that helped a bit. I inspected the oxygen sensor harness and its ok. I'm still getting codes 41 and91. The fuel pressure is 25 to 30 with regulator hooked up and 35 unplugged is that low...
  3. Blaise805

    Gross Polluter

    Yes I realize that. I have been running some tests but I think I need to inspect the entire harness that is my next chore.
  4. Blaise805

    Gross Polluter

    Hi guys not overwhelmed just frustrated I have replaced just about everything except the coolant sensor in the heater pipe and the egr position sensor. I changed the canister purge solenoid today and got rid of that code. I don't give up that easy. I'm a pretty fair wrencher I repair boat...
  5. Blaise805

    Gross Polluter

    False alarm back to codes 34 41 91 I have been changing vacuum hoses oxygen sensors, egr solenoid egr valve thermactor solenoid's check engine turns on about ten minutes of driving. Oh and the canister purge valve is sending code 85. I think its going to the smog shop.
  6. Blaise805

    Gross Polluter

    Hi guys I just checked the fuel pressure thirty pounds at idle give it gas dropped to twenty five. I disconnected the fuel pressure regulator and and had a steady thirty five pounds. I ran the codes engine running fuel pressure regulator disconnected vacuum plugged and the code 41 went away we...
  7. Blaise805

    Gross Polluter

    I have the ground attached to the intake manifold. I'm going to check the fuel pressure today again thanks for the help. Cheers Randy.
  8. Blaise805

    Gross Polluter

    I was reading about codes 41 and91 on the other posting. I changed my heads to Gt40s with no thermtactor plumbing in the heads. I had read that they were only used to warm the cats at start up. The air is sent to the cats after warm up. These codes were present before I did the swap. I'm...
  9. Blaise805

    Gross Polluter

    Hi I did the balance test and passed no problem one thing I did notice is that with the spout plugged in the timing seems to jump around and with it unplugged it sits right on ten degrees. I tested all plug wires and coil wire with the timing light and they all worked smoothly with no
  10. Blaise805

    Gross Polluter

    I checked the egr sensor readings and they were good as well as pins 29 and 43 while the engine was running and they were pulsing between .1 and close to .9 with the ground at the computer. I checked compression it was good. The codes never cleared 41 and 91. The engine seems to have a slight...
  11. Blaise805

    Gross Polluter

    ok I give up I'm taking the car to the pros. I have tried everything and cant get it to clear the codes. I'll post the results the appointment to drop the car off is Thursday. I'm usually pretty good at trouble shooting problems and don't give up but its time to wave the white flag.
  12. Blaise805

    Gross Polluter

    Thanks allot for the help I really appreciate it.
  13. Blaise805

    Gross Polluter

    will do I forgot to mention I ran the codes about a year ago before I did any mods and it had the same codes. I didn't need a smog test then and the car seemed to run good so I didn't pursue any actions these codes have been there for awhile.
  14. Blaise805

    Gross Polluter

    Hi so I did all of the tests today and now I only have codes 41 and91. I tested the 43 pin and the 29 pin with the ground next to the computer with the engine running. The meter showed that it was switching normal in range. The air pipes going to the heads are not there since I installed GT40...
  15. Blaise805

    Gross Polluter

    ok so I have been learning more than I want to know. I have solved the egr codes I did the tests on the evr sensor and when I retested the code was gone. I tested the output from the computer to the oxygen sensors with them unplugged and I'm getting the pulsing at idle and it was good. The codes...
  16. Blaise805

    Gross Polluter

    Hi I'm frustrated I just did all that work to my 88 Gt. The car runs strong but I'm having smog test woes. The car has very high HC readings and is a gross polluter I pulled the codes got 85 31 34 41 and91. I replaced the egr solenoid egr valve and oxygen sensors. When I move the throttle I can...
  17. Blaise805

    Cobra Intake And Gt40 Heads

    They are GT40s not the GT40ps. I have the stock 19lb injectors. I didn't want to build a race car I was looking to have a nice driver with a bit more punch. I'm happy with it but need that last piece the bigger MAF. I was really amazed that when I pulled the heads off there was no wear or ridge...
  18. Blaise805

    Cobra Intake And Gt40 Heads

    I was thinking about that and I also need a MAF.
  19. Blaise805

    Cobra Intake And Gt40 Heads

    Hi this is my 1988 GT. I just spent the last couple weeks freshening it up a bit. What I did New timing chain water pump shorty headers GT forty heads cobra intake 70mil throttle body. the result is much better power in the higher rpms.
  20. Blaise805

    Fox Gt40 Head Air Pipes

    That's what I'm, thinking