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I finally got the car back yesterday and it runs perfectly! As a summary of my issue and warning to whomever wants to clean his throttle body: After servicing the car including throttle body clean up, my car started idling very badly and I received the following error code: P1095: Air mass ahead of throttle valve After many trials and trips to the dealer, they found 2 issues: 1. Minor air leak on the air intake boot 2. MAF was not damaged, we tried with both a new one and the old one 3. I get the car back after this and the faulty code comes back after 1h and IDLE is again erratic 4. GO back to the dealer, performs more tests, and finally decides to try to get a throttle body from a same engine that they had in the shop 5. Tests were conclusive and the TB was changed. The car runs like new. When I cleaned the TB, I removed it completely and cleaned the inside of the tube and moved the plate to thoroughly get all the oil out (not much but I wanted it super clean). Apparently when forcing the plate to move, I damaged the position sensor. Thanks all for your advice and support!!!
Interesting update: the dealer finally identified the issue to be the throttle body. Their porsche master mechanic pulled 2 tb out of engines they had on end and tested my car successfully. Now what I find interesting is that the very first code I reported on this thread using an autozone reader was: p2102. Explanation is "throttle actuator control motor circuit low". This code seems actually more to the point and accurate than the code returned via the durametric. Any thoughts on this?
Hi, I just started using the durametric enthusiast version. I have a 997.1 (2006). I have 2 questions related to the software that I could not find answers for in the forum: 1. I am trying to read the actual stft and ltft values while engine is IDLE but I'm not sure which parameter to read as I cannot find a label including stft or ltft. On the other hand, in the frozen data of my error code I can see stft and ltft for both banks but I need actual values. Thanks for your help! 2. Depending on which actual value I want to read, if I select more than one, all stop being displayed/recorded. Is that a known bug or a misuse from my part? Thank you! J
They did not replace the boot and I did not have time to have a look but when I go back I'll have a talk with the technician directly. Thanks Ahsai, I'll call the dealer and let them know to check the connection (if they haven't already done it on their own)! I'll report back on the issue. J
and the cel came back. About 2 hours after leaving the dealership, idle started acting up again and the cel light came on. Same code, same behavior :-(
OK so the dealer just called me. They suspected a vaccum leak and proceeded with a smoke test. Apparently the leak was at the "intake boot". Can you guys tell me which part that is? I can't figure it out! My understanding is that it's the connector right after the MAF to the throttle body is that right? In that case, I don't know how I could have missed it!!!! :cursing: Bottom line is that they were fair, charged me with 1h diagnostic and that's it!
Yes it is!! I mean short term and long term fuel trim as recorded in the fault code. I will let you know the outcome, I fear the bill! THank you for your help! J
Hi All, so I received the new maf. Disconnect the battery, swapped the maf, validated that all error codes were gone. I went for a drive, the car ran smoothly, idle not perfect but better. No issue. I come home, plug in the durametric and the P1095 is back in the list! Mass airflow ahead of throttle body, implausible. Occurred are 28% load 54kph 2800rpm Ambient air temp: 27C Intake air temp 40C But here is where it's interesting: STFT and LTFT: 0 on both banks. I went for a 20 mile drive. I'm almost giving up, I have an appointment on Tuesday at the dealership but if anybody has a last idea I'd love to hear it. I double checked the wiring and connection of all hoses as well as proper fitting of the tb. All looks good... THank you!!
Ahsai, you seem to lean toward MAF and JFP towards leak? MAF reading is definitely high 29 warmed up and without load. I decided to try a new MAF, it all started right after I change the airfilter and cleaned the MAF with MAF cleaner. It would be a weird coincidence that the day I clean it a leak occurs (I did not remove any hose or weird stuff). I will receive the new MAF tomorrow. Do you advise me to disconnect the battery before swapping? For safety and also reseting the ECU? I will let you know the result! J
I took the reading warmed up. What's interesting is that when I wrote about the error codes and stft above, the MAF value were around 18! I checked the 1095 error code details this time and the stft were both at 0 and ltft at +3!! So it seems that I have very different results from one reading to another. Is this leading more toward a leak or MAF in your opinion?
So I noticed something, I cleaned the MAF again but to no avail. Reading at idle no load shows 28kg/hr which is too high. We had a cold morning and when I started the car it died, restarted and the IDLE was unstable but it remained on. Another thing I noticed: I opened the oil filler tube when the engine was running. I could open it without issue but there is definitely a vaccum (I can both hear and feel it). Is it normal to have some vaccum from the oil filler, again, I could remove the cap without difficulty but the vaccum is definitely present. THank you, J
Hi, so I received my durametric and have much info! The car still idles very badly, especially when cold or after a spirited drive. I have the following fault codes: P1095: Air mass ahead of throttle valve P2187 and P2189: o2 sensor adapt RKAT bank (1&2) range near idle: in this case limit exceeded I have then again both P2187 and P2189 but with the message open circuit In All cases I'm noticing the following: STFT: +25 both banks LTFT: -3 both banks Any thoughts, ideas? Thank you all!!
Update: I disconnected the MAF yesterday, car was hot, IDLE bad before disconnection. After disconnection the IDLE was way worse this time! I'm confused, there does not seem to be a pattern. Any thought, anyone? Thank you guys!
So I spend time cleaning the maf again, I also double checked all connections to the body throttle, even cleaned the connectors with electronic cleaner. I unplugged the battery which reset the error code (I still don't have the durametric so I cannot confirm that the code was BT). After doing so I started the car, went for a 30 minute drive (spirited) and the car ran perfectly. No error code, idle was smooth. On Sunday I start the car, error code comes back on right away (I assume it's still p2102 but will validate as soon as the durametric is here) and IDLE is again choppy. When cold it's pretty bad then it get's better (quite perfect actually) then it gets bad again when hot. When it's bad rpm surges to 1500 and almost stalls. If I disconnect the MAF the IDLE is better. Any thought on what next step I should take?
Thanks JFP, I'll work on this this weekend!!!