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Search: Posts Made By: Al Borman
Showing results 1 to 25 of 173
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Forum: C4 Tech/Performance
06-09-2011, 08:51 PM
Replies: 40
Views: 28,360
Posted By Al Borman

Although I have not tried it, it would make sense...

Although I have not tried it, it would make sense that you could probe the Low resolution wire with a DVM set to AC , and voltage measurement range next level above 5 V. While someone is cranking...
Forum: C4 Tech/Performance
06-08-2011, 05:29 PM
Replies: 40
Views: 28,360
Posted By Al Borman

With that re-occuring H16 error code, I too have...

With that re-occuring H16 error code, I too have a bad feeling it is your Opti. If you have a decent set of tools, you can do this yourself and save a bunch of money. I have replaced a bunch of...
Forum: C4 Tech/Performance
06-08-2011, 05:10 PM
Replies: 40
Views: 28,360
Posted By Al Borman

Yes, the PCM supplies the Opti with a 5V DC...

Yes, the PCM supplies the Opti with a 5V DC reference voltage. The Opti uses this "reference" voltage to generate the Low and High resolution pulses for firing order(Low res) and timing trim(High...
Forum: C4 Tech/Performance
06-07-2011, 06:09 PM
Replies: 40
Views: 28,360
Posted By Al Borman

Mike, Removing the neg. Bat. terminal is fine...

Mike,
Removing the neg. Bat. terminal is fine to remove the codes.

First off, the C-12 is a normal code which is the code for "start of diagnostic error code output dump". You will always see...
Forum: C4 Tech/Performance
06-07-2011, 01:57 PM
Replies: 40
Views: 28,360
Posted By Al Borman

For model years '94 and '95, here is a more...

For model years '94 and '95, here is a more precise and guaranteed method to clear your error history codes(and you don't have to mess with the battery) :

To clear the codes,

1. With ignition...
Forum: C4 Tech/Performance
06-06-2011, 05:48 PM
Replies: 23
Views: 878
Posted By Al Borman

ad-01 , help us out here please, so we can try...

ad-01 , help us out here please, so we can try to help you out !! Is the guy selling this car giving you any clue as to what is wrong with it ? What's the deal ?

:willy:
Forum: C4 Tech/Performance
06-06-2011, 05:25 PM
Replies: 40
Views: 28,360
Posted By Al Borman

BTW, that H16 error code is not good, as it is an...

BTW, that H16 error code is not good, as it is an Opti error :

DTC 16 - Distributor Ignition System (Low Resolution Pulse)


I would clear all error codes, then turn over engine for 15 seconds...
Forum: C4 Tech/Performance
06-06-2011, 04:55 PM
Replies: 40
Views: 28,360
Posted By Al Borman

Mike, When you checked for voltage at B...

Mike,
When you checked for voltage at B connector location, are you sure you had your DVM set to measure in AC . You cannot measure this alternating voltage if your meter is set to DC, as the...
Forum: C4 Tech/Performance
06-06-2011, 11:49 AM
Replies: 2
Views: 5,794
Posted By Al Borman

This is PCM pinout for '95, with '96-'97 in red...

This is PCM pinout for '95, with '96-'97 in red highlight :
http://img35.imageshack.us/img35/2053/1995pcmconna.th.jpg (http://imageshack.us/photo/my-images/35/1995pcmconna.jpg/)...
Forum: C4 Tech/Performance
06-06-2011, 11:29 AM
Replies: 23
Views: 878
Posted By Al Borman

What did the person selling the car say was wrong...

What did the person selling the car say was wrong with it ? Who ever is selling this vette has to have a vague idea of the problem, unless they purchased as a non-runner ...... and if that is the...
Forum: C4 Tech/Performance
06-05-2011, 02:34 PM
Replies: 40
Views: 28,360
Posted By Al Borman

Here is a little more detail on the test that...

Here is a little more detail on the test that Lt4red outlined above:

Anyway, here is something to check out. You need to have a high impedence DVM to do this:

(This is a cut/paste test...
Forum: C4 Tech/Performance
06-05-2011, 02:10 PM
Replies: 40
Views: 28,360
Posted By Al Borman

You really need to find a parts store that can...

You really need to find a parts store that can test your ICM. If Advance doesn't have an ICM tester, try Pep Boys, O'Reilly, Auto-Zone, etc. Don't be concerned with the injectors at this point, as...
Forum: C4 Tech/Performance
06-05-2011, 01:44 PM
Replies: 2
Views: 408
Posted By Al Borman

If your upper door panel does NOT stay in the...

If your upper door panel does NOT stay in the channel on the door, you may want to check the 4 or 5 plastic ribs on the inside of the door panels to see if they have split and seperated. I used some...
Forum: C4 Tech/Performance
06-05-2011, 10:34 AM
Replies: 8
Views: 803
Posted By Al Borman

Quick and easy test of electric cooling fans....

Quick and easy test of electric cooling fans. Swap the primary and secondary harnesses at the relays. I have done this on my '94 just to ensure that the secondary fan was operational, because it...
Forum: C4 Tech/Performance
06-05-2011, 09:52 AM
Replies: 158
Views: 15,572
Posted By Al Borman

The odd thing is that he found 8ozs of oil at the...

The odd thing is that he found 8ozs of oil at the bottom of the evaporator when he removed it !!

From page 2 I think:
"Well I put 3 oz in the evap as per the FSM but got worried when I emptied it...
Forum: C4 Tech/Performance
06-03-2011, 06:02 PM
Replies: 158
Views: 15,572
Posted By Al Borman

OK, I trust a CF member's work more than a shops...

OK, I trust a CF member's work more than a shops !! You got a real head scratcher going here !!!

Can you clear up one thing for me regarding the line filter. Is this how it is situated in your...
Forum: C4 Tech/Performance
06-03-2011, 02:21 PM
Replies: 158
Views: 15,572
Posted By Al Borman

OK guys, you all seem to have the evaporator...

OK guys, you all seem to have the evaporator diagnostics down, but I am still concerned as to why your compressor cycles on/off so rapidly. I think that this is a valuable clue that should not be...
Forum: C4 Tech/Performance
06-02-2011, 08:39 PM
Replies: 158
Views: 15,572
Posted By Al Borman

I am not trying to take this thread in a...

I am not trying to take this thread in a completely different direction, but are you not concerned about the rapid cycling of your compressor ? Have you tried shorting your compressor cut-off switch...
Forum: C4 Tech/Performance
06-02-2011, 07:46 PM
Replies: 158
Views: 15,572
Posted By Al Borman

Your compressor should not be cycling on/off so...

Your compressor should not be cycling on/off so rapidly. For the most part it should be on for long durations, and cycle off for shorter durations. This cycling will be governed by your AC cutoff...
Forum: Southwest
11-07-2010, 01:27 PM
Replies: 55
Views: 2,551
Posted By Al Borman

MEZ was right the first time when he said "I...

MEZ was right the first time when he said "I thought you were in a band".........

http://img571.imageshack.us/img571/5835/thisisnotawig.jpg
Forum: Southwest
11-04-2010, 09:56 PM
Replies: 55
Views: 2,551
Posted By Al Borman

Who ? Lucy Lew....that's who !!!!! Soooo,...

Who ? Lucy Lew....that's who !!!!!

Soooo, since when do CFO's know how to use grills ?

MEZ....You are 'da man !!!!

Christ, I havn't posted on CF in so long, I almost forgot my...
Forum: C4 Tech/Performance
09-09-2010, 05:20 PM
Replies: 9
Views: 748
Posted By Al Borman

Did you pull a vacumm on the system prior to...

Did you pull a vacumm on the system prior to recharge to remove moisture, and did you replace the amount of oil that was removed from the replaced componenets ? Is your system orig. R12 or R134A...
Forum: C4 Tech/Performance
09-07-2010, 05:33 PM
Replies: 203
Views: 33,785
Posted By Al Borman

Yes, he does have an ICM. It's a '95. Is your...

Yes, he does have an ICM. It's a '95.
Is your battery and alternator strong ? When your compressor/fan turn on, there is a high instantaneous current demand which may be pulling your Bat/Alt...
Forum: C4 Tech/Performance
09-07-2010, 02:12 AM
Replies: 136
Views: 7,666
Posted By Al Borman

You are correct about the 5W getting into to the...

You are correct about the 5W getting into to the "tighter" tolerences at startup. But tighter tolerences become a little less tighter as we rack up the miles on our vettes. I am no oil expert, but I...
Forum: C4 Tech/Performance
09-06-2010, 07:18 PM
Replies: 136
Views: 7,666
Posted By Al Borman

Yep, now that you have changed an Optispark...

Yep, now that you have changed an Optispark twice, replaced an ICM, learned test procedures and all that good stuff, sent off an ECU for repair, you are now christened as an LT1 ignition/starting...
Showing results 1 to 25 of 173
 
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