1995 vs 96-98 993's
05-04-2007, 04:35 PM
#61
Drifting
Join Date: Sep 2004
Posts: 2,168
Likes: 0
Received 0 Likes
on
0 Posts
"San Francisco Syndrome"???? I thought that's when you run around with a flower in your hair preaching peace while trying to figure out if your LSD was working!!!
05-04-2007, 04:43 PM
#62
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.
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.
05-04-2007, 04:53 PM
#63
Rennlist Member
Join Date: Aug 2005
Location: I should be in TNT for Carnival!
Posts: 10,165
Received 293 Likes
on
239 Posts
Originally Posted by pcar964
Your ignorance is apparent on this issue. The SAI problem does nothing to affect performance or reliability, it's an emissions thing. Therefore, useless and not worth worrying about. Anyone who wants to spend thousand of $$ fixing it, go right ahead. But it's foolish to do so unless you live in CA or some other **** state.
05-04-2007, 05:03 PM
#64
Burning Brakes
But...Are not clogged SAI ports the canary in the worn valve guide coalmine (hence so many "premature" valve jobs?)
It seems that OBD1 and earlier 911s can wear their valves out in blissful ignorance - until they consume oil and blow smoke - with no early SAI code/CEL, while OBD 2 cars merely sound the alarm a lot earlier than most of us would be willing to concede a valve job is warranted.
It seems that OBD1 and earlier 911s can wear their valves out in blissful ignorance - until they consume oil and blow smoke - with no early SAI code/CEL, while OBD 2 cars merely sound the alarm a lot earlier than most of us would be willing to concede a valve job is warranted.
05-04-2007, 05:08 PM
#65
Burning Brakes
BTW - 120k miles here and no clogged SAI ports worn valves or CELs. The secret is to drive the **** out of the car everyday (40 spirited miles roundtrip for me), and practice good maintenance habits...
05-04-2007, 05:39 PM
#66
Rennlist Member
Originally Posted by Edward
Hi Aaron,
Welcome to the board! There is LOTS on this question in the archives. Grab a drink and sit back. But for the record, 95s are simply better.
...ok, that'll get 'em started
Edward
Welcome to the board! There is LOTS on this question in the archives. Grab a drink and sit back. But for the record, 95s are simply better.
...ok, that'll get 'em started
Edward
05-04-2007, 05:42 PM
#67
Originally Posted by Matt Davies
But...Are not clogged SAI ports the canary in the worn valve guide coalmine (hence so many "premature" valve jobs?)
It seems that OBD1 and earlier 911s can wear their valves out in blissful ignorance - until they consume oil and blow smoke - with no early SAI code/CEL, while OBD 2 cars merely sound the alarm a lot earlier than most of us would be willing to concede a valve job is warranted.
It seems that OBD1 and earlier 911s can wear their valves out in blissful ignorance - until they consume oil and blow smoke - with no early SAI code/CEL, while OBD 2 cars merely sound the alarm a lot earlier than most of us would be willing to concede a valve job is warranted.
-Jim
05-04-2007, 06:19 PM
#68
Burning Brakes
Originally Posted by jimbo3
An SAI CEL is not a good indicator of worn valve guides. There is only a vague correlation between the two. A bad SAI check valve or, as pointed out earlier, alot of engine start/stops on short trips are big contributors. Because there are several causes is why some can get an SAI CEL at 25K miles and others not at all. A better indicator of worn guides is oil consumption on an engine that has good compression/leakdown.
-Jim
-Jim
Thankfully, SOME of the OBD2 variorams appear to be bombproof.
05-04-2007, 07:36 PM
#69
Rennlist Member
Originally Posted by mborkow
try this thread: https://rennlist.com/forums/showthread.php?t=349361
I just got back from my "Italian tune-up" run on Highway-101. Hope it keeps those ports clean!
05-04-2007, 08:08 PM
#70
Drifting
Join Date: Aug 2006
Location: South Bay, Los Angeles
Posts: 2,733
Likes: 0
Received 3 Likes
on
3 Posts
Originally Posted by Butzi (chef_jmr)
I must give credit to that thread, it was part of my inspiration.
I just got back from my "Italian tune-up" run on Highway-101. Hope it keeps those ports clean!
I just got back from my "Italian tune-up" run on Highway-101. Hope it keeps those ports clean!
05-04-2007, 11:45 PM
#72
Rennlist Member
>>>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.<<<
>>Your ignorance is apparent on this issue. The SAI problem does nothing to affect performance or reliability, it's an emissions thing. Therefore, useless and not worth worrying about. Anyone who wants to spend thousand of $$ fixing it, go right ahead. But it's foolish to do so unless you live in CA or some other **** state<<
What do you think happens when the CEL comes on? The ECU defaults into a preprogrammed mode limiting the range of the full mass air flow/O2 feedback system. Sure it will run, but in the 'old days' it was called 'limp in', or 'open loop'. Depending on what fault is generated, it may or may not cause further engine damage and you may or may not notice any change in performance. (most faults today are simply idiot lights, as in Evap Leak, or, you left the gas cap off)
>>Your ignorance is apparent on this issue. The SAI problem does nothing to affect performance or reliability, it's an emissions thing. Therefore, useless and not worth worrying about. Anyone who wants to spend thousand of $$ fixing it, go right ahead. But it's foolish to do so unless you live in CA or some other **** state<<
What do you think happens when the CEL comes on? The ECU defaults into a preprogrammed mode limiting the range of the full mass air flow/O2 feedback system. Sure it will run, but in the 'old days' it was called 'limp in', or 'open loop'. Depending on what fault is generated, it may or may not cause further engine damage and you may or may not notice any change in performance. (most faults today are simply idiot lights, as in Evap Leak, or, you left the gas cap off)
05-04-2007, 11:58 PM
#73
Drifting
Originally Posted by pcar964
Your ignorance is apparent on this issue. The SAI problem does nothing to affect performance or reliability, it's an emissions thing. Therefore, useless and not worth worrying about. Anyone who wants to spend thousand of $$ fixing it, go right ahead. But it's foolish to do so unless you live in CA or some other **** state.
Dude,
Who rammed a stick up your *** today.
Not all of us here on rennlist are the worlds greatest expert on everything Porsche like you and California is not a **** state, unlike places down south where the KKK is alive, well and preaching hate.IMHO, you are a complete & total *** for making such a statement!...................ZP44
