it needs something. the t-stat isn't opening, so I'm thinking it's too rich.
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Originally posted by Cabriolet View Postplease post the #s.
if you need, I have a new cat at my dad's that i use to pass every year.
HC - 219/120
NOX - 0.47/1.02
2500 rpm:
HC - I forget but significantly less
NOX - 0.37/??
would be interested if my attempts to fix it don't work. it's possible that my cat might just be toast. I have a wideband I can make a backprobe out of.
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Originally posted by Cabriolet View Postyou need chevron 91, bosch super copper plugs, valve adjustment, cap and rotor and new air boot.
I'll grab a pic of the results on weds night, but I'm fairly certain that motor temp is the smog issue, so the question is, what is the motor temp issue.
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Awesome, I was going to fail too! The smog guy is a friend of mine, so he lets me do a free check before the actual test. HC at idle got up to 5xx and the NOx got into the pass range. Once he tested it at 15mph NOx went to 18xx and HC fell to about 2xx. He blipped the throttle to test the cat's ability to soak up HC and it just sat at like 5xx forever, so probably a bad cat.
I had a small amount of questionable gas mixed with 76's 91, new Bosch WR8LC+ (may have been damaged in shipping), valve adjustment, new bremi cap, new bremi rotor, old air boot.
It feels like I have a misfire, which would help to explain the terrible numbers. Once I sort that out, the next culprit is either the O2 sensor or the aftermarket cat. Fun.
Also, any thoughts on why the car would run High HC and CO at idle, then extreme NOx with still double the limit of HC under load? I feel like that's switching from rich to lean?
Last edited by McGyver; 07-24-2018, 09:03 AM.sigpic
1987 - 325i Convertible Delphin Auto [SOLD], 325i Convertible Delphin Manual [SOLD]
1989 - 325i Convertible Bronzit m30b35 swapped [SCRAPPED], 325i Sedan Alpine Auto[DD]
1991 - 325i Coupe Laguna Manual [Project], 535i Sedan Alpine [SCRAPPED]
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Originally posted by kronus View Postcheck, OE-spec NGK's, check, check, check, check.
I'll grab a pic of the results on weds night, but I'm fairly certain that motor temp is the smog issue, so the question is, what is the motor temp issue.
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I think rubber is the way to go with a daily, but others will disagree. I have a set of E30 M3 offset solid rubber cabs waiting to go on. I missed my chance recently when I did the steering rack, so they are just sitting for now. Eventually I will install themSimon
Current Cars:
-1999 996.1 911 4/98 3.8L 6-Speed, 21st Century Beetle
Make R3V Great Again -2020
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For a DD with shitty CA roads, I would go rubber all the way. For stock suspension, I would use the stock CABs that have the holes. For a lowered car, I would suggest at least solid centered CABs, but the solid off-center e30m3 bushings will help to add some castor (helping the car to track straight at speed).
I use rubber off-center e30m3 bushings on my cars, especially since I have a z3 rack. It's smooth enough for the roads around here and helps to reduce twitchyness of the rack at highway speeds.sigpic
1987 - 325i Convertible Delphin Auto [SOLD], 325i Convertible Delphin Manual [SOLD]
1989 - 325i Convertible Bronzit m30b35 swapped [SCRAPPED], 325i Sedan Alpine Auto[DD]
1991 - 325i Coupe Laguna Manual [Project], 535i Sedan Alpine [SCRAPPED]
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Okay thanks guys. I will go with solid centered to see if it helps my problem, unless anyone has a different opinion given my issues...
I think my passenger side CAB was pressed in slightly off. I can’t remember, I do remember the control arm being at a different height/angle than the drivers side when installing everything though. I am having trouble with a shake on that side around 60-75mph and my car does not track straight, it pulls to the right. I’ve had it aligned twice (Big O Tires) and it still tracks to the right. I’ve also rotated the tires and that hasn’t helped so not an unbalanced tire situation. Could a bad wheel bearing cause this at all? I have this weird little squeak/metal scrape sound when braking, its constant, same spot every rotation of the wheel, mainly happens at low speeds.
I just got my first engineering job that I’ll be needing to commute 15-20 miles one way to and dont want to deal with this anymore.
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hello, guys!!! I'm baaack! Looking for an S52 motor or s54. Pm if you got any.Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.
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89 E30 S52
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