# RB20DET - Richer than normal/pinned rich **URL:** \ **Category:** SON240sx Automotive\ **Created:** [October 14, 2009, 5:22pm UTC](https://forums.speedlife.net/t/rb20det-richer-than-normal-pinned-rich/128803 "2009-10-14T17:22:20Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![87s15lt1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/87s15lt1/32/5706_2.png) [@87s15lt1](https://forums.speedlife.net/u/87s15lt1)\ **Post date:** [October 14, 2009, 5:22pm UTC](https://forums.speedlife.net/t/rb20det-richer-than-normal-pinned-rich/128803/1 "2009-10-14T17:22:20Z")
Alright. So. Since the track day. My car has been running way richer than normal. Driving. I don’t really care. Seems to of picked up a bit more torque this way. Yet, at idle. It fucking stinks and burns my bloody eyes. At warm idle 195 degrees Fahrenheit. Closed throttle 950rpm AFR reads .79-.85 or 11.2-12 NO black smoke. Yet I honestly can not tolerate the fucking smell. I just took off my seriously bent up exhaust and put my other exhaust on. One thing though. At shanny, I sucked in some power steering fluid. Yet, I cleaned my MAF and 02 sensor. I’ve turned my idle up, and down. No change TPS was messed with. No change. Unplugged CTS and bypassed to trigger hot. No change. I’m really not in the mood with this car to spend a lot of time on it. Or any money for that mater. I need the car for another week or so till I get my truck ready. I’m hoping someone has an answer for me. If you need more info. Let me know ---
**Author:** ![87s15lt1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/87s15lt1/32/5706_2.png) [@87s15lt1](https://forums.speedlife.net/u/87s15lt1)\ **Post date:** [October 16, 2009, 6:50am UTC](https://forums.speedlife.net/t/rb20det-richer-than-normal-pinned-rich/128803/2 "2009-10-16T06:50:03Z")
News; Seems to be getting worse. Short drive on the highway. Steeles @ 410 to Mayfield @ 410. I got to the lights and she started stumbling. Looked at the AFM and she was lean off the fuckin board. She seems somewhat decent while being driven. Not 100% Yet, at idle…either lean or rich. Dosn’t seem to be running stoich at idle anymore, ever. It’s getting worse every damned day now. I’m leaning towards a MAF. Can anyone confirm? Or something? ---
**Author:** ![kix89](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/kix89/32/5689_2.png) [@kix89](https://forums.speedlife.net/u/kix89)\ **Post date:** [October 16, 2009, 7:52am UTC](https://forums.speedlife.net/t/rb20det-richer-than-normal-pinned-rich/128803/3 "2009-10-16T07:52:02Z")
i seem to have this problem too, it’s weird, i find that if i just hammer it for a quarter mile, it seems to fix itself. then again mines intermittent though… ---
**Author:** ![bmart](https://avatars.discourse-cdn.com/v4/letter/b/9d8465/32.png) [@bmart](https://forums.speedlife.net/u/bmart)\ **Post date:** [October 16, 2009, 8:33am UTC](https://forums.speedlife.net/t/rb20det-richer-than-normal-pinned-rich/128803/4 "2009-10-16T08:33:53Z")
I think these engines don’t like the cold. Mine’s doing the same thing. It feels like I’ve picked up 50 hp and she’s running lean at full throttle. Also, it’s idling at 1100-1500rpm. ---
**Author:** ![87s15lt1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/87s15lt1/32/5706_2.png) [@87s15lt1](https://forums.speedlife.net/u/87s15lt1)\ **Post date:** [October 16, 2009, 10:13am UTC](https://forums.speedlife.net/t/rb20det-richer-than-normal-pinned-rich/128803/5 "2009-10-16T10:13:07Z")
I ran my RB in the spring. below 0 at night. Was fine. I don’t think that the cold is relevant how ever. I really think the PS fluid fucked my MAF. BUT!!! It’s getting worse seemingly…I don’t fucking know. ---
**Author:** ![kix89](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/kix89/32/5689_2.png) [@kix89](https://forums.speedlife.net/u/kix89)\ **Post date:** [October 16, 2009, 10:46am UTC](https://forums.speedlife.net/t/rb20det-richer-than-normal-pinned-rich/128803/6 "2009-10-16T10:46:06Z")
did you clean your MAF with electrical connection cleaner? ---
**Author:** ![87s15lt1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/87s15lt1/32/5706_2.png) [@87s15lt1](https://forums.speedlife.net/u/87s15lt1)\ **Post date:** [October 16, 2009, 12:29pm UTC](https://forums.speedlife.net/t/rb20det-richer-than-normal-pinned-rich/128803/7 "2009-10-16T12:29:42Z")
Cleaned it with MAF cleaner lol. Seems like there are only a select few RB enthusiast’s here. Not good when we need help! I’m not sure on a fix…is anyone? ---
**Author:** ![Martino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/martino/32/5674_2.png) [@Martino](https://forums.speedlife.net/u/Martino)\ **Post date:** [October 16, 2009, 12:32pm UTC](https://forums.speedlife.net/t/rb20det-richer-than-normal-pinned-rich/128803/8 "2009-10-16T12:32:46Z")
It’s defiantly not the cold. I ran mine all winter last year. ---
**Author:** ![kix89](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/kix89/32/5689_2.png) [@kix89](https://forums.speedlife.net/u/kix89)\ **Post date:** [October 16, 2009, 1:01pm UTC](https://forums.speedlife.net/t/rb20det-richer-than-normal-pinned-rich/128803/9 "2009-10-16T13:01:04Z")
[rbforums.org](http://rbforums.org) is your friend