Running super duper rich

[DRAKLORE]

Soooo, I got the kmd fuel pump (internals) and installed it a couple days later when my tuner said he could flash the car to stg2+. He ended up having to reschedule me for the next week. After a couple of days (not really driving it) it started to run quite rich and pop (backfire) upon deceleration. I figured it was due to the pump providing that extra fuel! Then the engine light came on and starts became quite rough. I checked the code and as I thought it was a code for bank one running rich. I cleared out the code and all was fine for a bit but it started acting up. The next day I cleared the code and the problem came back almost immediately. I stopped driving it until the tune got done, I explained the problem to my tuner and he agreed that it was most likely due to the pump. After the tune it had almost the same exact problems, almost a little worse because now it was "popping" whilst driving on the highway... Anyone have any ideas or experiencing this problem themselves?[confused]

[Coderedpl]

Are you throwing any codes now?
Could it be misfiring?

[groundround]

could it have ruined the plugs during that time?

[DRAKLORE]

It isn't misfiring and it just feels weak as shit like when my dv went except I'm holding boost and I haven't thrown any codes yet

[martin0079]

I had my tune done before I installed the pump I dont have the backfiring problem but I think I am not boosting what I am supposed to the most I have seen is 17psi unitronic says it is suppose to be 20psi but i have not seen it yet installed a catch can and fmic to see if it is the pvc or a boost leak are you boosting what the tune says you should

[Coderedpl]

Leak maybe of some sort? Check the lines like the boost gauge hose if you have one.

Idk I'm just throwing ideas out there now lol anything might help

[WalkerT]

Start with checking your plugs and then do a leak check. It is always best to do the basic test first. This will tell you if you have a damaged plug or a boost leak. If one of the plugs has gone bad then you would be dumping alot of unused fuel into your exhaust.

[DRAKLORE]

True, I'm waiting on a tire now so I can't drive it, but I'm pretty sure I'm boosting around 20psi still, also boost is holding steady, I will pull the plugs today and check them along with some other things. I'm not misfiring so I think that the plugs should be fine. I hope it's something minuscule! Wish me luck

[airbornerifleman]

I wish you luck, keep us in the loop.

[DRAKLORE]

Pulled the plugs and they look clean. I'm starting to think my intake manifold gasket might be the issue, I took my chance and reused it when I did the injectors, when I took them out it looked fine but I think I will spray the manifold tomm to check for leaks. Currently Its not drivable because I blew out a brand new tire, the shop never cleaned the mounting surface on the rim and it was slowly leaking down, I noticed a bubble and called them up, it was too late cuz the tire was already fawkd! Misses is going in tomorrow to get the new tire, hopefully comped or at a
Discount... Lol

[rnp614]

check oil level? Is it higher--if so could be gasoline? Maybe fuel pump seals?

[viziers]

Pulled the plugs and they look clean. I'm starting to think my intake manifold gasket might be the issue, I took my chance and reused it when I did the injectors, when I took them out it looked fine but I think I will spray the manifold tomm to check for leaks. Currently Its not drivable because I blew out a brand new tire, the shop never cleaned the mounting surface on the rim and it was slowly leaking down, I noticed a bubble and called them up, it was too late cuz the tire was already fawkd! Misses is going in tomorrow to get the new tire, hopefully comped or at a
Discount... Lol


Wait! let me get this straight... you installed the KMD internals AND installed the RS4 injectors on a stg1 tune???? If that is correct then the RS4 injectors are your problem... You cant use them even on a stg2+ tune on a K03 turbo........




vizi

[DRAKLORE]

No no no lol when I first got the rs4 injectors I was misinformed that I could run them on a
Stg2 tune, so input them in, then realized I made a
Mistake and took them out!

[DRAKLORE]

So I wrote some different settings on the sps, then I took off. Before I got out of the complex I got a p0172 (bank 1 too rich) or something. I cleared out the code and set the ecu to 9-5-9, I must say it ran Alot better and after a couple hours of driving the code had not set again. So far so good

[DRAKLORE]

Engine light popped up again... P0172 now I know that something is probably bad, just need to start narrowing it down... Urgh!!

[viziers]

Might have a boost leak?

look here:
http://wiki.ross-tech.com/wiki/index.php/16556/P0172/000370



vizi

[DRAKLORE]

Pulled a p0171 today and under boost(anything above 1psi) the normal sucking noises the turbo makes seem to sound like a cricket chirping as its a fast paced. Chirpy noise ... I have a feeling its my intake manifold gasket. It still holds boost and feels strong.... Really strong. So a system too rich and a system too lean... If it's not my manifold then I will also check my MAF out as well
Hopefully having that pump on for a few days before getting flashed didn't cook my injectors??

[martin0079]

What dv do you have the only time I have heard chirpping from a turbo is when the dv is not working correctly

[mr shickadance]

cnt remember if you have a pcv solution or the oem pcv.....but when my pcv went south it made a very obnoxious whine at vacumn .....dealer gave me a new pcv fo free but im pretty sure i blew that one now too....:-(

[DRAKLORE]

I have the revision d dv installed. Also have my PCV deleted, running a catch can. I could see how the dv would make that noise, cutting on and off. I really just want to throw that bt on already lol but I figure it's best to sort out these small problems before they become large ones!

[DRAKLORE]

[rolleyes]Well I think I found my issue, found one of the lower intake nuts fairly loose! I was able to put it on another turn or so. Ill have to drive it a bit to see if that solves it

[Mc Suly]

^Glad you found it.
I was about to say NO to kmd internals & go with an APR Rebuild haha.

APR Rebuild is just double the price, so does that mean double the fun?haha.

[DRAKLORE]

Nah I wouldn't blame this on kmd, nothing against Apr but they seem to spend Alot of money on r&d and come out with bullet proof hardware and software, only it's reflected in the price... Most of the time it's worth it... Most of the time [;)]

[viziers]

Id have to say though im glad I DO have the APR pump as it's one less thing I have to worry about breaking....Lol




Btw don't feel bad I forgot to tighten that one intake manifold bolt completely... But mine wasconsidered a boost leak....




vizi