About to purchase 2004 50th anniversary

[GTsilber]

I have been trying to trouble shoot my top issue, so far no luck. Here are some things I tried and observations:
1. Check handbrake is illuminated in dash when pulled - confirmed
2. Check top microswitch is working correctly - when pulled Windows go down, when pushed up windows roll up - confirmed
3. Remove top double relay and reinsert - confirmed but not sure if relay is bad?
4. Replace B6 fuse - confirmed
5. The top warning light does not illuminate when placing key in ignition, not sure if it should
6. The top rocker switch does not illuminate with yellow light, upon toggling switch no sound from top motor or otherwise

What else can I try?

On another note, got a CEL light, P0420. Hooked up my OBD2 and noticed that B1S1 and B1S2 are showing similar voltage, do I need to replace S1 or is it the cat that's bad?



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[dghii]

Originally Posted by GTsilber

I have been trying to trouble shoot my top issue, so far no luck. Here are some things I tried and observations:
1. Check handbrake is illuminated in dash when pulled - confirmed
2. Check top microswitch is working correctly - when pulled Windows go down, when pushed up windows roll up - confirmed
3. Remove top double relay and reinsert - confirmed but not sure if relay is bad?
4. Replace B6 fuse - confirmed
5. The top warning light does not illuminate when placing key in ignition, not sure if it should
6. The top rocker switch does not illuminate with yellow light, upon toggling switch no sound from top motor or otherwise

What else can I try?

On another note, got a CEL light, P0420. Hooked up my OBD2 and noticed that B1S1 and B1S2 are showing similar voltage, do I need to replace S1 or is it the cat that's bad?

The windows toggle up and down with the microswitch in the top latch assembly.

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I guess you've got to do a little more digging with the top.

First off, handbrake illumination does not mean the microswitch for the top is good, Bypass the switch at the top controller relay. See Pedros DYI for instructions, its easy and once you do it, you'll like it!

1, Beg, borrow steal a new top controller relay and see what happens.
2. Get out the top pry bar and disconnect the pivot arm ball joints to allow top and clam shell to operate manually. This will allow you to inspect the mechanical aspects of the top operation, along with allowing you to place the top in any position you want.

3. with top disconnected, get to the tops motor, which is directly underneath the rear window. Disconnect drive cables (to keep both sides in sync) and power the motor directly to check its condition.

[GTsilber]

Originally Posted by dghii

I guess you've got to do a little more digging with the top.



First off, handbrake illumination does not mean the microswitch for the top is good, Bypass the switch at the top controller relay. See Pedros DYI for instructions, its easy and once you do it, you'll like it!



1, Beg, borrow steal a new top controller relay and see what happens.

2. Get out the top pry bar and disconnect the pivot arm ball joints to allow top and clam shell to operate manually. This will allow you to inspect the mechanical aspects of the top operation, along with allowing you to place the top in any position you want.



3. with top disconnected, get to the tops motor, which is directly underneath the rear window. Disconnect drive cables (to keep both sides in sync) and power the motor directly to check its condition.

Thanks for the help...wasn't sure which Pedro article you were referring to but I tried the one for bending back pin 18 to drop the top while moving...didn't work for me is there another article that I should try?

How do I get my hands on another relay to test?

[dghii]

Originally Posted by GTsilber

Thanks for the help...wasn't sure which Pedro article you were referring to but I tried the one for bending back pin 18 to drop the top while moving...didn't work for me is there another article that I should try?

How do I get my hands on another relay to test?

Look for the hack where you ground pin 15 (I think). that bypasses the parking brake.

[GTsilber]

Originally Posted by dghii

Look for the hack where you ground pin 15 (I think). that bypasses the parking brake.

Yup I already did that and it works!

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[GTsilber]

Here is a list of maintenance items that I plan on completing in the next couple of weeks:
1. Clean Throttle Body (complete)
2. Replace spark plugs (went with OEM Beru)
3. Oil Change (going with Pentosin 5w40, Hengst filter, new LN magnetic drain plug)
4. Inspect existing oil filter for metal/plastic
5. Replace driver side door check hinge
6. Replace fuel line vent valve (ordered OEM off a 2002 911)
7. Replace AOS (OEM part purchased)
8. Check brake wear sensors - (dash light is illuminated but pads look good)
9. Possibly replace B1S2 o2 sensor

Anything else I should be looking at, other than IMS?