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No kidding about just takes miles. I looked at my last smog check vs the one done today. It has been 2000 miles. I haven't changed a single thing since fixing the air leak by the AOS that caused the P1128/P1130. That was on 2/28. My daily drive has been consistent of ~70mi. The past 2 days, I've been very discipline about following the full drive cycles. I don't think last night's commute in traffic helped me. It wasn't until this morning that the status has flipped.
I was about to go drop off the car to the shop today. This morning the status finally switched to ready status! This is after 2 tank of gas ~ 500mi with about 3-5 complete drive cycles. Anyways, I went to the smog shop and passed. Now I could wait for my sticker from DMV. Thank you everyone for their patience and helping me along the way.
I am still experiencing the SAI still being in the incomplete status :huh: Here are the O2 readings from three different cold start: 2 in the morning and 1 in the evening after work
Mmm, ok. I will try this. This seems opposite of what all other drive cycle guideline's instruction - which is to let the car idle 2-5mins. Has anyone seen the status would flip right away after the pump shuts down or do I have to perform the full drive cycle?
Update: Found there was a vacuum line going to the AOS is loose, which is probably the suspect of the air leak that caused P1128 and P1130. Drove the car and the Catalyst monitor is now complete. The Fuel trim while idling after the engine is warmed looks fine now. Haven't seen any pending P1128 or P1130. In regards to the Secondary Air Injection, it is still incomplete. Only had couple cold start since the vacuum line fix. Do I need to have the AC and the defroster on during the cold start? rprieto, the pump shuts off after about 2m - 2m15s. Do you mean to drive the car within 90-120 seconds after the pump shuts off? Or do yo mean to drive the car 90-120 seconds after the engine turns over?
What I ended up doing is that I replaced the middle portion of the oil filler pipe and the y-connector tube from the AOS to the intake. Also, I ran 20oz of the techron cleaner and have driven for about a tank of gas since then. Sprayed around these areas as suggested with carb cleaner: all vacuum lines - all changeover valves that are connected to the vacuum lines - the vacuum reservoir - all AOS lines and their connections to the AOS, crankcase and throttle body - oil filler tube - brake booster vacuum connection at the intake manifold - the intake plenums and runners ^ Didn't find any RPM changes :( With only the engine cover on and no sound dampening foam, I could still hear the a slight sound of air getting sucked in and get released: 1) when I rev the car in neutral or during the drive 2) when I am completely off the throttle and get back on the throttle. ^ Would this still the be the cause of my problem? I didn't get to do the fuel pressure test yet. I will be driving the car more this week and see if there's the warm idle lean condition would still happen. (P1128 and P1130) Thoughts and suggestions? :help:
I popped off the AOS's j-pipe and found small amount of oil on the TB side. Also I saw some oil mark on top of the oil filler pipe and some small area of oil on the top of the engine beneath the oil filler pipe. On the left picture, you could see the red and blue arrow pointing to the oil on top of the engine. Yellow arrow pointing to oil on top of the oil filler pipe. Brown arrow is just pointing out the oil found at J pipe What is that part with the red arrow pointing to on the right side?
Yes, it's in %. Questions: Does intake air leak includes the oil filler tubes portion? I assume this mean it's time to do the carb cleaner spray on possible suspect? Which components should I cover? How do I check about the fuel pressure?
Here are the number. This is after a 30mi drive. Adaption range 2 (FRA) bank 1 - 1 Adaption range 1 (RKAT) bank 1 - 3.05 Adaption range 2 (FRA) bank 2 - 0.98 Adaption range 1 (RKAT) bank 2 - 3 Then the number increased after 2-3 mins idle. Then the two code came back to fault memory. Adaption range 2 (FRA) bank 1 - 1 Adaption range 1 (RKAT) bank 1 - 4.5 Adaption range 2 (FRA) bank 2 - 0.98 Adaption range 1 (RKAT) bank 2 - 4.5
These are the values on the cold start: Adaption range 2 (FRA) bank 1 - 1.01 Adaption range 1 (RKAT) bank 1 - 2.67 Adaption range 2 (FRA) bank 2 - 0.98 Adaption range 1 (RKAT) bank 2 - 2.58
Using Torque Here are the O2 voltage, fuel trim and RPM from a cold start this morning. I did not get the chance to log after a warmed engine. I saw that the Catalyst and EVAP monitor is already back at the "Ready" status after 2 drive cycles. SAI remains incomplete. Would a log during a drive would help as well?
Update: Replaced with a new MAF and also fixed a minor air leak in the cross tube on the intake. Drove for a week and now I have two pending codes: P1128 and P1130. This seems a little bit dancing in circle as most of the other post about these two codes are in regards to changing the MAF. :( Here's some new graphs, MAF, O2 and RPM.
Here's log of a 30 minutes drive after the car is warmed up.
Still no pending code. Here's some graphs from cold start.
Here are graphs of O2 voltage and MAF after the engine is fully warmed up and idling. Data were taken from Durametric. I messed up on the fuel trim logging, I will gather the data tomorrow.