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whoosh.....stutter........CheckEngineLight! [fixed pg5]
john_o:
update
2 days at Awesome for some swap n check stuff.
New fuel filter fitted = no diff
New in tank lift pump = no diff
and I think just to see if it did fix the issue
HPFP off the demo car tried = OK , no CEL hurrah (well almost!)
std pump put back on = CEL returns
The trains were delayed when I went to pick it up, but John@Awesome stayed behind past 6 just so I could get my car :happy2:
Im gonna have a chat with Jim as Im still not entirely happy , Awesome however continue to impress and have now spent a not inconsiderable amount of time and money on my car (I have not payed a penny) to get to the bottom of this.
Long and short is that the Ed30 std setup should support 128 bar throughout the rev range for APR stage 1, based on the hundreds of mapped K04 cars. Mine doesnt!
There are now several avenues
1 : Have the car flashed back to stock.
2 : as above and try another remap (although I suspect I may still have the same issue)
3 : APR to review my car even more thoroughly on Awesomes dyno + logging and supply a custom map if reqd !.
4 : Add the HPFP , which given the issues I have been offered at a vastly reduced price
Still cant help but feel the HPFP is just a band aid rather than fixing the primary problem!
The car has ran great since I picked it up! Now running some injector cleaner and a new tank of fuel.
I will see how it goes, as I need to consult with MrsO on the way forward.
I think Gaz may have something with the Lambda sensor/EGR and the map dumping extra fuel in to lower the EGR at higher temps, or the sensor itself getting covered giving different readings to the ecu.
I also still cant help get away from the fact some octane booster helped 1st time around.
Im also going to test my theory that a period of gentle running then a thrash makes it more likely to happen.
Try as i might I thrashed the car home (ESP off, deliberate wheelspin in 2nd /3rd to get rpms to limiter) and it just wouldnt happen.
I'm going to take a few days to consider my options and see how the car runs ..........
gazbutS3:
good to see awesome workin hard to try and fix it john, I think you should go the discounted HPFP route, not fit it and give it me :jumping:
neg:
--- Quote from: gazbutmk5gti on December 09, 2008, 09:55:15 pm ---not fit it and give it me :jumping:
--- End quote ---
I couldnt find the rolleyes smiley so this one will do .. :sick:
(was that added just for you gaz!)
gazbutS3:
think so :laugh:
john_o:
update, Jim gave me a call this morning, still very keen to get to the bottom of this
1. The problem did not occur at ProSport , car ran fine for 2 days after remap, problem only occurred 4 days in.
2. Changing back to my standard pump yesterday , it DIDNT misfire initially, only on my way home once. In fact picking my car up yesterday it was silent ! very quiet , but once Id got home it was back to a pronounced ticking (Yes, I know the injectors make a tick normally but it was noticeably different)
3. Octane booster appeared to help
4. The Fuel Pressure Sensor has not been changed , I though it was part of the pump , but its been swapped each time. This was a early car recall which I assumed wouldnt be a problem, but now I know its never been swapped its a potential problem.
5. I thrashed the car into work this morning and only got 1 instance of CEL, about 15-20 at least runs in 1st/2nd/3rd ESP off into limiter.
So, just swapping pumps appears to help! (be it HPFP or back to my same std pump)
The problem was repeatable up until yesterday (each run past 6300 rpm would cause a CEL), now it happens infrequently.
I am going to run for another week and see how it goes...............
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