1995 vs 96-98 993's
#46
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Originally Posted by cnrfan
good question 99three. Also, anybody know at what mileage the SAI CEL issue comes up?
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The silver cabs don't have the problem until 272,854 miles
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This is a known fact!!!
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#47
Three Wheelin'
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Originally Posted by ScubaJKD
Variospam adds a bit more punch but with a chip and airbox in a 95 you will smoke em
Now where did I leave that can of woop-*** at?
#48
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Originally Posted by TheOtherEric
Just to clarify, that TSB showing different part numbers on some 1995 versus later cars only related to shocks and sway bars, not suspension arms. What it means is that your early 1995 may have larger sway bars than 1996+, specifically 21/18mm instead of 20/17. ![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
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Thanks Eric,
Off hand i could not remember exactly what it was related to. i just knew it wasn't related to the control arms.
#49
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Originally Posted by Black993
any reason for this? Were they ever used after 95?
catch a date with the owners.. i guess by request Porsche brought this back as some owners didn't mind :P
It's all part of owning a 993i guess..
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#50
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Hi CN,
What I should of asked is on average (if there is such a thing) in miles when are the CEL problems poping up because of SAI. I wonder if our usernames have a similar meaning, I'm also originally from Toronto.
What I should of asked is on average (if there is such a thing) in miles when are the CEL problems poping up because of SAI. I wonder if our usernames have a similar meaning, I'm also originally from Toronto.
#51
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Originally Posted by cnrfan
Hi CN,
What I should of asked is on average (if there is such a thing) in miles when are the CEL problems poping up because of SAI. I wonder if our usernames have a similar meaning, I'm also originally from Toronto.
What I should of asked is on average (if there is such a thing) in miles when are the CEL problems poping up because of SAI. I wonder if our usernames have a similar meaning, I'm also originally from Toronto.
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#52
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Originally Posted by cnrfan
Hi CN,
What I should of asked is on average (if there is such a thing) in miles when are the CEL problems poping up because of SAI. I wonder if our usernames have a similar meaning, I'm also originally from Toronto.
What I should of asked is on average (if there is such a thing) in miles when are the CEL problems poping up because of SAI. I wonder if our usernames have a similar meaning, I'm also originally from Toronto.
Keep in mind that a CEL due to SAI sucks for sure, but the real pocketbook damage comes from worn valve guides (i.e., top end rebuild)... the two problems are not necessarily linked together. A '95 could have the valve guide problem just like a '96+ could, it just won't throw a CEL for clogged SAI passages.
Moral of the story? KNOW THE OIL CONSUMPTION!
Just my $.02
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this may sound really dumb, but what is the problem wiht just putting a piece of black tape over the check engine light if the reason is some silly air bag issue. I have done that on other spendy hi tech cars where the problem really wasn't one.
#54
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Originally Posted by gr8nine93
this may sound really dumb, but what is the problem wiht just putting a piece of black tape over the check engine light if the reason is some silly air bag issue. I have done that on other spendy hi tech cars where the problem really wasn't one.
When I was 18, I had a Yamaha 750. The 710 light kept coming on so I disconnected the wire as it annoyed me. Who needs a dang 710 anyway (I thought). The moral of the story is... Don't ignor the warning lights as they are trying to warn you about something may be wrong. As I experienced, I ran out of 710 and seazed the engine.
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#56
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I don't know about the whole chip = varioram equation. I have a chipped '95 and I would LOVE to have another 30-40 ft-lbs between 3000 - 4000 rpm. The chip makes it better, but there's still quite a hole in the poweband.
#57
Drifting
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Originally Posted by Rick K
Nope, just someone that has figured out a way to clean out the carbon w/o doing the valve job. I don't know much beyond that little bit of info, but apparently its a lot cheaper than what people pay at the dealer to handle this problem.
All this service is, is a reaming of the SAI (secondary air injection) channels that clog with carbon from the car being driven like an old woman (up shift points around 2500rpm) so drive your 993 harder and up shift around 5000 rpm or higher.
On 95's it is not a problem because if the channels are clogged it will not throw a CEL and the car will pass CA smog.
Good luck if you have a vario 96+ 993 that threw a CEL, because it will never pass smog here unless you clean the carbon and lose the thrown CEL.
It is also true that the vario car while having only 10 ponies more have around 20 ft lbs of mid range torque that the 95's don't, but that's easy to fix by never letting your 95 drop below 4500rpm on up shifts.
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ZP44
#58
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Originally Posted by ZombiePorsche44
the SAI (secondary air injection) channels ...clog with carbon from the car being driven like an old woman (up shift points around 2500rpm) so drive your 993 harder and up shift around 5000 rpm or higher.
ZP44
ZP44
Zombie I thought this as well but Steve Weiner (and others) smacked me down...SAI is only open for the first 30 secs of a start-up so lots of short trips=earlier clogging of passages.
I no longer drive my car 1-3 miles to a party just to park in the driveway and show off.
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(But running the car at higher revs (when warm!) may in fact help by lubing valve stems more and delaying the wear/coking that leads to the clogging in the first place.)
So take long trips and rev freely! I'm now at 81,000 on my '96 with no CEL ever (now knocking wood).
Search "san francisco syndrome" if you want to find out what happens if you DON'T stick to long trips and DON'T rev freely, however innocently you may do this.
JoH
#59
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Originally Posted by Jack of Hearts
Search "san francisco syndrome" if you want to find out what happens if you DON'T stick to long trips and DON'T rev freely, however innocently you may do this.
JoH
JoH
Having just recieved my 993 with 89k miles and no CEL when in the hands of previous owners (in Denver), I'm hoping I can blow out the crud on weekends that builds up during the week's shorter trips here in the city...
(although, I'm having a couple of mechanics check out what could be a leaking cylinder head right now, that may lead to a top-end rebuild, not related to CEL/SAI)
#60
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Originally Posted by CN
Yes, this sounds dumb!!!
When I was 18, I had a Yamaha 750. The 710 light kept coming on so I disconnected the wire as it annoyed me. Who needs a dang 710 anyway (I thought). The moral of the story is... Don't ignor the warning lights as they are trying to warn you about something may be wrong. As I experienced, I ran out of 710 and seazed the engine.![Roll Eyes (Sarcastic)](https://rennlist.com/forums/images/smilies/rolleyes.gif)
When I was 18, I had a Yamaha 750. The 710 light kept coming on so I disconnected the wire as it annoyed me. Who needs a dang 710 anyway (I thought). The moral of the story is... Don't ignor the warning lights as they are trying to warn you about something may be wrong. As I experienced, I ran out of 710 and seazed the engine.
![Roll Eyes (Sarcastic)](https://rennlist.com/forums/images/smilies/rolleyes.gif)
![banghead](https://rennlist.com/forums/graemlins/banghead.gif)