 O2/boosting problem |
 Oct 27 2004, 06:25 PM
Post
#1
|
|
 DSMCentral Freak  Group: Validating Posts: 365 Joined: 3-January 03 From: Mt. Sterling, IL Member No.: 60  |
Ok my car has been throwing a C/E light for some time, well it comes on for a few days, goes off for a few days, and so on. Well for a while now i have felt a powerloss from when i bought the car it seems. My factory boost guage only is reading 4-5 PSi and never any higher. Well after playing with my pocketlogger, the light says its code 11 O2 sensor. Does that mean its bad or is something else making it read wrong? I logged a run and the front o2 reads 2.5v all the time, never changes. the rear o2 read 0.00v-0.13v peak on a run. I get about 43 counts of knock about 6500-7k RPM, it reads ~0 till i hit 3k-3500 rpm. My car is totally stock, and i checked the piping and dont see any visible leaks and my question is will a bad o2 make you loose boost and is the o2 sensor itself bad? They are 118 bucks for a new one so i wanted to cover all other options before i got a new one. I have 176k miles, and i know at one point the previous owner replaced it already, but i dont remember when, i will have to check the paperwork. any help will be appreciated. Oh and another thought of a boost leak would be it might possibly be leaking into the crankcase, the dipstick pops out sometimes and also the "breather" completely comes out also. My oil pressure reads about a quarter inch from the 2nd line on the guage when i get on it, i have a feeling that probably isnt accurate considering the miliage. Anyone got any ideas? thanks
-------------------- 2005 Mitsubishi Eclipse GS- Pretty daily driver
--------------------------------------- 1990 Mitsubishi Eclipse GSX- Traded in, buhbye little buddy 1994 Plymouth Laser- 1.8 auto. 1994 Mitsubishi Eclipse- GS auto. RIP 12/5/02 |
 |
 
|
 |
Replies
|
Oct 29 2004, 12:34 PM
Post
#2
|
|
 Post Master Group: Members Posts: 972 Joined: 30-October 02 Member No.: 34 |
QUOTE (90GSX @ Oct 28 2004, 12:25 AM) the dipstick pops out sometimes This is a bit of a band-aid fix in light of the other issues, but the dipstick popping is not that uncommon even on otherwise healthy cars. The rubber seals around the dipstick can harden over time (15 years in this case) and make it seal less perfectly. You can crimp the top of the dipstick tube with a pair of vicegrips to make it hold the dipstick in a bit better as well as replace the dipstick itself (cheap part) in order to fix the aging rubber seal problem. Again, not a fix to everything above but might help eliminate one of the smaller symptoms you're encountering. -------------------- |
|
|
|
Posts in this topic
90GSX O2/boosting problem Oct 27 2004, 06:25 PM
turbohcar First of all, if you've got a first generation... Oct 27 2004, 06:47 PM KOU In3 I'm assuming this is on your '90 AWD? If ... Oct 27 2004, 06:53 PM 90GSX yeah is for the 90 gsx. I was assuming it was pos... Oct 27 2004, 07:21 PM JMoushon 1. Replace o2 sensor
2. Replace knock sensor (be... Oct 27 2004, 07:50 PM 90GSX hopefully someone on here with the same software m... Oct 27 2004, 08:20 PM ncgalant That's how MMCD has been on every first gen I... Oct 28 2004, 06:30 AM JMoushon Have you done a compression test? 250-300 hp is a... Oct 28 2004, 06:13 PM 90GSX Well when i bought the car travis had done a compr... Oct 28 2004, 07:57 PM natedogg It is very possible to pressurize your crankcase t... Oct 29 2004, 10:28 AM 90GSX well it only does it on occasion, but also i forgo... Oct 29 2004, 01:24 PM
KOU In3 Hose clamp that badboy on there. Oct 29 2004, 02:05 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
| Lo-Fi Version | Time is now: 11th October 2025 - 08:21 PM |
Powered By IP.Board
© 2025 IPS, Inc.