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Search: Posts Made By: pdx930
Forum: 911 / 930 Turbo & Super Charging Forum 05-22-2019, 02:24 PM
Replies: 14
Views: 2,121
Posted By pdx930
One thing I can see in the wideband signal is...

One thing I can see in the wideband signal is that the frequency of the oscillation changes at idle compared to driving. Not sure whether that is driven by the 7 deg switch or rom or both.

My...
Forum: 911 / 930 Turbo & Super Charging Forum 05-22-2019, 10:56 AM
Replies: 14
Views: 2,121
Posted By pdx930
That is not what my wife and data shows. Below...

That is not what my wife and data shows. Below around 3000 rpm, the lambda is actively controlling mixture, and you can see it oscillating between rich and lean on my wideband O2 sensor. My 87 also...
Forum: 911 / 930 Turbo & Super Charging Forum 11-01-2015, 08:12 PM
Replies: 20
Views: 949
Posted By pdx930
I had exactly the same symptoms. Bought and...

I had exactly the same symptoms. Bought and replaced one micro switch of the pair per one of those links' instructions and problem solved.
Forum: 911 / 930 Turbo & Super Charging Forum 10-23-2015, 09:33 PM
Replies: 23
Views: 1,157
Posted By pdx930
my 87 would spike up when I first bought it....

my 87 would spike up when I first bought it. Aside from replacing the thermostat oil cooler (sprang a leak within 100 miles of having the thermo done) and the engine compartment seal, all of which...
Forum: 911 / 930 Turbo & Super Charging Forum 05-07-2015, 10:00 PM
Replies: 31
Views: 1,917
Posted By pdx930
Another thing that transitions at 3000 rpm is the...

Another thing that transitions at 3000 rpm is the operation of the frequency valve. It goes from O2 sensor feedback control to fixed duty cycle at 3k rpm. If you have a big air leak, the lambda...
Forum: 911 / 930 Turbo & Super Charging Forum 03-09-2015, 04:29 PM
Replies: 5
Views: 487
Posted By pdx930
Thanks guys. That makes one less project for...

Thanks guys. That makes one less project for this spring. Moving on to tearing out my noisy ER polybronze bushings in the spring plates and refreshing the brakes.
Forum: 911 / 930 Turbo & Super Charging Forum 03-08-2015, 09:09 PM
Replies: 5
Views: 487
Posted By pdx930
Opinions on my AFR curve?

I pulled the car out of storage today and did some data logging, and would like some expert opinions on my AFR curve. As background, my car is nominally a stock '87, with a fabspeed muffler and...
Forum: 911 / 930 Turbo & Super Charging Forum 01-05-2015, 10:30 AM
Replies: 97
Views: 8,754
Posted By pdx930
I had the micro-switch problem. On mine, I could...

I had the micro-switch problem. On mine, I could turn the control to defrost and the fans would come on while the servo was going to full open, but once there they would go off again. Only one of...
Forum: Porsche 911 Used Parts For Sale & Wanted 02-13-2014, 04:02 PM
Replies: 5
Views: 743
Posted By pdx930
The exhaust arrived today. Thanks to Chris for...

The exhaust arrived today. Thanks to Chris for prompt shipping, and great packaging and a painless transaction.

-Bob
Forum: 911 / 930 Turbo & Super Charging Forum 09-27-2013, 02:44 PM
Replies: 43
Views: 4,383
Posted By pdx930
The only thing that is changing going from...

The only thing that is changing going from neutral to being in gear is that you are spinning up the input shaft and clutch disk. It really sounds like you have a problem with the pressure plate,...
Forum: Porsche 911 Technical Forum 09-11-2013, 03:58 PM
Replies: 12
Views: 1,388
Posted By pdx930
I just wrapped up a full system rebuild with a...

I just wrapped up a full system rebuild with a Griffith's kit on my 87 930. I bought my car 4 years ago and the longest hose from the rear decklid condenser to the front condenser had burst. I...
Forum: 911 / 930 Turbo & Super Charging Forum 08-21-2013, 10:37 PM
Replies: 28
Views: 2,534
Posted By pdx930
I went through this with my 87 too, right after I...

I went through this with my 87 too, right after I bought it. It helps to narrow it down to fuel or ignition. Next time it dies, turn the key on and reach around the back of the fuel distributor and...
Forum: Porsche 911 Used Parts For Sale & Wanted 02-24-2013, 07:48 PM
Replies: 3
Views: 820
Posted By pdx930
I'll take it if it is still available. Shipping...

I'll take it if it is still available. Shipping would be to 97123.
Forum: Porsche 911 Used Parts For Sale & Wanted 12-24-2012, 10:02 AM
Replies: 6
Views: 562
Posted By pdx930
I'll take the turbo charge pipe. Bob

I'll take the turbo charge pipe.

Bob
Forum: 911 / 930 Turbo & Super Charging Forum 09-10-2012, 02:43 PM
Replies: 5
Views: 692
Posted By pdx930
If your O2 sensor is actually working, you can...

If your O2 sensor is actually working, you can check the duty cycle of the pulse valve at the diagnostic connector on the fuse/relay panel in the engine compartment. Should be around 50% when the...
Forum: 911 / 930 Turbo & Super Charging Forum 08-19-2012, 08:15 AM
Replies: 26
Views: 2,139
Posted By pdx930
Mine did the same thing when I first bought it. ...

Mine did the same thing when I first bought it. When the voltage regulator fails it overcharges and fries the cd box. Lorenfb on this forum helped me out with testing and replacement of the cd box....
Forum: 911 / 930 Turbo & Super Charging Forum 07-18-2012, 12:56 PM
Replies: 23
Views: 2,888
Posted By pdx930
So just to add some more fuel to the general...

So just to add some more fuel to the general cooling fire, make sure your engine tin to body seals are all in good shape. The section in the rear, above the turbo / muffler takes a lot of heat...
Forum: Porsche 911 Technical Forum 07-11-2012, 01:04 PM
Replies: 33
Views: 11,111
Posted By pdx930
It definitely stinks more. I notice it mostly...

It definitely stinks more. I notice it mostly when coming to a stop, I'm guessing that is from it running lean enough not to ignite on decel and loading up the chambers in the muffler with partially...
Forum: 911 / 930 Turbo & Super Charging Forum 06-14-2012, 12:48 PM
Replies: 66
Views: 12,546
Posted By pdx930
Got mine yesterday. Hope to get them mounted up...

Got mine yesterday. Hope to get them mounted up next week!

Damon at tire rack was able to source them from a different warehouse than the one I selected when I ordered online. This is a clear...
Forum: 911 / 930 Turbo & Super Charging Forum 06-05-2012, 03:34 PM
Replies: 24
Views: 2,537
Posted By pdx930
Who are you guys talking to at tire rack. I...

Who are you guys talking to at tire rack. I ordered a set May 28 and they are still listed as back order. I called customer service yesterday and they told me there were none available at any of...
Forum: 911 / 930 Turbo & Super Charging Forum 06-04-2012, 08:44 AM
Replies: 66
Views: 12,546
Posted By pdx930
Are you sure they shipped? I ordered may 28 and...

Are you sure they shipped? I ordered may 28 and the tracking still shows back ordered for me.
Forum: Porsche 911 Technical Forum 04-03-2012, 12:35 PM
Replies: 84
Views: 5,647
Posted By pdx930
How are your engine tin to body seals? If you...

How are your engine tin to body seals? If you are sucking your cooling air up over the exhaust through the bottom vs in from the top of the lid, you're going to have a hard time keeping oil temps...
Forum: Porsche 911 Technical Forum 03-13-2012, 02:47 PM
Replies: 84
Views: 5,647
Posted By pdx930
My '87 turbo was running very hot sitting in...

My '87 turbo was running very hot sitting in traffic and last spring I had my mechanic replace the engine thermostat, the fender well thermostat insert and spring ($50 or so in parts at the dealer)...
Forum: Porsche 911 Used Parts For Sale & Wanted 03-11-2012, 12:53 PM
Replies: 6
Views: 786
Posted By pdx930
The tool kit and compressor arrived Friday in as...

The tool kit and compressor arrived Friday in as hoped condition. Thanks very much for a hassle free transaction!

Bob
Forum: Porsche 911 Used Parts For Sale & Wanted 02-27-2012, 08:55 AM
Replies: 6
Views: 786
Posted By pdx930
Sent you a pm on the tool-kit and compressor last...

Sent you a pm on the tool-kit and compressor last night. I'll take them at the asking price. Shipping would be to 97123
Showing results 1 to 25 of 58

 
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