I tried my hand at doing a boost pid but I think it reading double? And I also noticed that later in my drive I started showing negative LTFT's. Is my O2 looking ok or should I replace it?
I tried my hand at doing a boost pid but I think it reading double? And I also noticed that later in my drive I started showing negative LTFT's. Is my O2 looking ok or should I replace it?
86 Fiero Convertible 3800sc/4T65E HD(2002)
I think I may have solved why my boost isn't reading properly. I was playing around with the layout and came across the user defined pids and through that, was able to input the function which I couldn't find before. I will have to give that a try but I still am wondering about the rich condition.
86 Fiero Convertible 3800sc/4T65E HD(2002)
could someone look at my maf and O2 sensor to see if they need replacing? the car hunts for idle but when i disconnect the maf it clears up. i still get a reading in the maf.
86 Fiero Convertible 3800sc/4T65E HD(2002)
Your not logging Maf Hz. And your not in closed loop (in post #3).
Russ Kemp
Dunno? It's all stock right now I am just trying to get it all running properly. What should I do? I think the maf is on the way out, I know it's reading but II don't think correctly though. It's hunting for idle and will eventually stall, if I pull the maf then it's better.Originally Posted by Russ K
86 Fiero Convertible 3800sc/4T65E HD(2002)
Bump. I have since replaced the maf as it was failing, I am still wondering if the o2 is normal, it's still running rich.
86 Fiero Convertible 3800sc/4T65E HD(2002)
Anyone on the o2 readings if they are normal or slow and on its way out?
86 Fiero Convertible 3800sc/4T65E HD(2002)
You need to scan the car in CLOSED loop to see if the O2 is switching correctly. And you need to add the Maf Hz pid to your table, chart & histograms.
Russ Kemp
Shouldn't it already be in closed loop? Or was the engine too cold still and was running in open? How do I tell what loop it's in?
86 Fiero Convertible 3800sc/4T65E HD(2002)
bump.
86 Fiero Convertible 3800sc/4T65E HD(2002)
Your engine only got to 91F. It will need to get to full operating temperature before you can really tell if the O2s are working well.
Ok, I'v started another thread on the above. Any idears on the boost pid not reading correctly?
86 Fiero Convertible 3800sc/4T65E HD(2002)
Bump.
86 Fiero Convertible 3800sc/4T65E HD(2002)
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