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Search: Posts Made By: OkieC4
Showing results 1 to 25 of 173
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Forum: C4 Tech/Performance
05-29-2011, 09:02 AM
Replies: 2
Views: 991
Posted By OkieC4

From the 91 FSM.... After 2 second prime...

From the 91 FSM....

After 2 second prime cycle - 41-47 psi and holds steady (or slight psi drop when pump stops).

Idle (at normal operating temps) 3-10 psi lower (approx 38 psi) with vacuum...
Forum: C4 Tech/Performance
05-28-2011, 01:35 PM
Replies: 33
Views: 7,923
Posted By OkieC4

Having spent over 30 years as a licensed aircraft...

Having spent over 30 years as a licensed aircraft mechanic, a Technical Specialist and a Manager of Technical Operations for a major airline (which by the way is headquartered really close to...
Forum: C4 Tech/Performance
05-28-2011, 12:44 PM
Replies: 2
Views: 1,870
Posted By OkieC4

These links might help you out. It appears the...

These links might help you out. It appears the ECM is seeing a problem with one of the circuits controlled by the quad driver module.... Possibly cooling fan, a/c relay or transmission range...
Forum: C4 Tech/Performance
05-17-2011, 01:01 AM
Replies: 5
Views: 1,633
Posted By OkieC4

GM P/N 12126012 Weatherpak should be what you are...

GM P/N 12126012 Weatherpak should be what you are looking for.
Forum: C4 Tech/Performance
05-16-2011, 09:18 AM
Replies: 11
Views: 1,668
Posted By OkieC4

After comparing the 3 test results (07, 09, 11)...

After comparing the 3 test results (07, 09, 11) it appears the emissions have been relatively stable over the past 4 years..

Between 07 and 09 there was a good drop in HC (unburnt fuel...
Forum: C4 Tech/Performance
05-15-2011, 02:04 PM
Replies: 7
Views: 1,412
Posted By OkieC4

I checked my 91 FSM for sport seats... It...

I checked my 91 FSM for sport seats...

It appears the 4 metal caps secure the clips shown in the picture to the seat back plastic pan..

Per the diagram it looks like there are "retaining wires"...
Forum: C4 Tech/Performance
05-15-2011, 01:42 PM
Replies: 5
Views: 518
Posted By OkieC4

The local muffler shop replaced my precats with 2...

The local muffler shop replaced my precats with 2 1/2" pipe and a heavy bead weld... Must be the "one size fits all" school of thought:D

Oklahoma has no emission testing...:woohoo:

Not to...
Forum: C4 Tech/Performance
05-15-2011, 01:15 PM
Replies: 5
Views: 7,286
Posted By OkieC4

If you have power at the fuse, and nothing any...

If you have power at the fuse, and nothing any pin at the wiper motor module, in any switch position, the next place to check is the wiper/washer switch connector at the steering column.

Does your...
Forum: C4 Tech/Performance
05-15-2011, 12:54 PM
Replies: 5
Views: 518
Posted By OkieC4

Bill - My 91 stock Y pipes are 2 1/4" O.D....

Bill -

My 91 stock Y pipes are 2 1/4" O.D. and the rear pipe to the muffler is the same.
Forum: C4 Tech/Performance
05-15-2011, 12:41 PM
Replies: 11
Views: 1,668
Posted By OkieC4

I'm not discounting a cat problem, but if the...

I'm not discounting a cat problem, but if the right O2 sensor is constantly throwing a lean code, the ECM will widen the fuel injector pulse to give more fuel resulting in an overrich condition,...
Forum: C4 Tech/Performance
05-15-2011, 12:30 PM
Replies: 7
Views: 1,412
Posted By OkieC4

If the sport seat back cushions are held on like...

If the sport seat back cushions are held on like the standard seats, this might help...

http://willcoxcorvette.com/instructions/84%20up%20mounted%20seat%20cover%20install.JPG
Forum: C4 Tech/Performance
05-15-2011, 12:04 PM
Replies: 10
Views: 1,289
Posted By OkieC4

The filter eliminates signal noise and surges...

The filter eliminates signal noise and surges caused by many ignition systems. The filter modifies the sharp up-and-down spikes into a semi-square wave signal for steady pointer readings and faster...
Forum: C4 Tech/Performance
05-15-2011, 11:47 AM
Replies: 11
Views: 1,668
Posted By OkieC4

Yes - Code 64 is the right O2 sensor sensing lean...

Yes - Code 64 is the right O2 sensor sensing lean and it can affect your NOx readings as the ECM will try to adjust the injector pulses to enriched the mixture.

Before you start chasing your...
Forum: C4 Tech/Performance
05-15-2011, 10:26 AM
Replies: 11
Views: 798
Posted By OkieC4

Were there flashing lights behind you??:D ...

Were there flashing lights behind you??:D

Were you having any SES Code 13 problems before this event? If not, as Code 13 is an "open circuit" fault which went away with the sensor change, and it...
Forum: C4 Tech/Performance
05-15-2011, 10:08 AM
Replies: 2
Views: 430
Posted By OkieC4

The alarm module supplies a "cycling" ground to...

The alarm module supplies a "cycling" ground to the horn relay when an illegal entry condition is found...

Looking at the print shown in the link below, as the normal horn operation is ok, I would...
Forum: C4 Tech/Performance
05-15-2011, 09:39 AM
Replies: 10
Views: 4,576
Posted By OkieC4

Going back to the FSM Circuit Operation...

Going back to the FSM Circuit Operation description, the ECM receives the VSS sine wave signal, amplifies it and converts it to a square wave signal which is then supplied to the CCM, Cruise Module...
Forum: C4 Tech/Performance
05-14-2011, 11:42 PM
Replies: 10
Views: 4,576
Posted By OkieC4

OK. As the digits are constantly present (no...

OK. As the digits are constantly present (no blanking), reading zero or jumping tells me the link between the CCM and LCD is ok, but the CCM is not receiving a solid VSS input signal.

So, again,...
Forum: C4 Tech/Performance
05-14-2011, 11:05 PM
Replies: 10
Views: 4,576
Posted By OkieC4

I think your problem is not ECM related.. I'm...

I think your problem is not ECM related.. I'm not anywhere near my FSMs this weekend, so I'm working from memory with this post....

IIRC, the VSS feeds a signal to both the ECM and the CCM. The...
Forum: C4 Tech/Performance
05-08-2011, 10:05 PM
Replies: 6
Views: 1,582
Posted By OkieC4

Looking further at connector IDs, it looks like...

Looking further at connector IDs, it looks like the one in the photo is a 4 way f merti pack 150 series #12047785. In my FSM it is listed as C212. Still looking........
Forum: C4 Tech/Performance
05-08-2011, 09:54 PM
Replies: 6
Views: 1,582
Posted By OkieC4

I'm not sure how many, if at all, unused...

I'm not sure how many, if at all, unused connectors are built in to the main harness on a vette.. In 1973, I worked for GM Packard Electric Division in Clinton, MS for about six months building main...
Forum: C4 Tech/Performance
05-08-2011, 09:08 PM
Replies: 6
Views: 1,582
Posted By OkieC4

I don't have an 89 Electrical Supplement, but if...

I don't have an 89 Electrical Supplement, but if it is coming out of the main harness, would it be possible it is one of the connectors for the C60 manual a/c control head option that is unused? My...
Forum: C4 Tech/Performance
05-08-2011, 11:20 AM
Replies: 9
Views: 1,153
Posted By OkieC4

I have used a product called Chemrex-948 on some...

I have used a product called Chemrex-948 on some of my body panels and to repair floor pan damage from improper jacking. A trusted body shop guy turned me on to it.. It is a high strength adhesive...
Forum: C4 Tech/Performance
05-08-2011, 10:57 AM
Replies: 47
Views: 2,382
Posted By OkieC4

#1 - Your 2 fan relays are on the l/h side of the...

#1 - Your 2 fan relays are on the l/h side of the radiator shroud, side by side. You should have 12 volts at the red wire of each relay at all times (Pin E). You should have 12 volts at the...
Forum: C4 Tech/Performance
04-30-2011, 10:06 PM
Replies: 4
Views: 1,948
Posted By OkieC4

IIRC the 95 and 96 have the 3rd relay wired in to...

IIRC the 95 and 96 have the 3rd relay wired in to allow for several combinations of fan speed. Not sure what they are, or how it's wired, but in an old Haynes I had laying around, it said "due to...
Forum: C4 Tech/Performance
04-30-2011, 09:58 PM
Replies: 9
Views: 645
Posted By OkieC4

Check your fuel pressure at the rail and see how...

Check your fuel pressure at the rail and see how fast it bleeds off to check your fuel pressure regulator.

Ohm your injectors. You may have a few dead or leaking ones..
Showing results 1 to 25 of 173
 
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