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Search: Posts Made By: ULTM8Z
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Forum: C4 General Discussion
04-18-2024, 09:42 PM
Replies: 21
Views: 844
Posted By ULTM8Z

Unless the rod journal is ground down... which is...

Unless the rod journal is ground down... which is what happened to me.
Forum: C4 General Discussion
04-18-2024, 06:31 PM
Replies: 21
Views: 844
Posted By ULTM8Z

Glad to hear you're going to fix it. Yeah...

Glad to hear you're going to fix it.

Yeah with my 383 I take it pretty easy. Besides the last thing I need is a reckless driving ticket or arrest.
Forum: C4 Tech/Performance
04-14-2024, 01:52 PM
Replies: 6
Views: 146
Posted By ULTM8Z

One really good tool to have is an OBD1 scanner. ...

One really good tool to have is an OBD1 scanner. You can then see all the sensor outputs and how the ECM is reacting to them.

Only other things you can really do is check spark timing and fuel...
Forum: C4 Tech/Performance
04-10-2024, 09:04 AM
Replies: 19
Views: 451
Posted By ULTM8Z

Yes, some of the parameters are different. It...

Yes, some of the parameters are different. It was mainly an example of the things you can do with WB data.
Forum: C4 Tech/Performance
04-09-2024, 01:35 PM
Replies: 11
Views: 243
Posted By ULTM8Z

Don't get an Accel ICM either. Pertronix...

Don't get an Accel ICM either.

Pertronix is the only aftermarket one I've tried that actually works and as reliable.
Forum: C4 Tech/Performance
04-08-2024, 11:22 PM
Replies: 11
Views: 243
Posted By ULTM8Z

I'd suggest getting a Pertronix module. I love...

I'd suggest getting a Pertronix module. I love mine... actually got a noticeable improvement in throttle response when I put it in.

Reliable too... it's been failure free for several years now.
Forum: C4 General Discussion
04-08-2024, 09:08 PM
Replies: 21
Views: 844
Posted By ULTM8Z

Ugh. Same thing happened to me a few years ago...

Ugh. Same thing happened to me a few years ago on my ZZ4. Very sinking feeling. Ended up being a spun rod bearing.

But ended up using that as a spring board to my current 383.

Took about...
Forum: C4 Tech/Performance
04-08-2024, 09:04 PM
Replies: 11
Views: 243
Posted By ULTM8Z

Oops... double post.

Oops... double post.
Forum: C4 Tech/Performance
04-08-2024, 09:01 PM
Replies: 11
Views: 243
Posted By ULTM8Z

I have a like-new Accel coil if interested. PM...

I have a like-new Accel coil if interested. PM me if interested.
Forum: C4 General Discussion
04-07-2024, 06:47 PM
Replies: 15
Views: 343
Posted By ULTM8Z

I'm the late 90s I has bought factory CE Vette...

I'm the late 90s I has bought factory CE Vette wheels for my '71 Camaro.

They have this embossed marking on them.
...
Forum: C4 Tech/Performance
04-07-2024, 11:38 AM
Replies: 4
Views: 188
Posted By ULTM8Z

I'd inspect the wiring very closely and make sure...

I'd inspect the wiring very closely and make sure there isn't some fray somewhere that could potentially short again (assuming the pump itself wasn't the short). Something blew the fuse... just...
Forum: C4 Tech/Performance
04-07-2024, 11:18 AM
Replies: 19
Views: 451
Posted By ULTM8Z

Yeah, you can do all sorts of cool stuff with the...

Yeah, you can do all sorts of cool stuff with the data. When I was trying to dial in my MAT tables after relocating it for the Miniram, I generated a tool that analyzes AFRs vs MAT using Tunerpro...
Forum: C4 Tech/Performance
04-06-2024, 05:45 PM
Replies: 19
Views: 451
Posted By ULTM8Z

ECM is capable of reading the WB if you hook it...

ECM is capable of reading the WB if you hook it up correctly. But all it will do is pass the info along to a datalogging system like Tunerpro. ECM won't be able to adjust fueling using a WB.

I...
Forum: C4 Tech/Performance
04-06-2024, 05:39 PM
Replies: 9
Views: 330
Posted By ULTM8Z

Yes, the SST chip on the green board, and MEMCAL...

Yes, the SST chip on the green board, and MEMCAL = the overall factory module inside the plastic housing.

Not exactly and expert on a 93 and up, but I think there's a knock sensor board with a...
Forum: C4 Tech/Performance
04-06-2024, 02:21 PM
Replies: 9
Views: 330
Posted By ULTM8Z

The SST chip basically overrides the chip in the...

The SST chip basically overrides the chip in the Memcal.

If you want to change some things, simply download the current bin and save it in a secure location so you can always go back to it.
Forum: C4 Tech/Performance
04-06-2024, 02:16 PM
Replies: 5
Views: 187
Posted By ULTM8Z

Yeah, it's the same for me in $8D. For example, I...

Yeah, it's the same for me in $8D. For example, I have a table for AE Filter Coefficient vs RPM. The values range from 0 to 1 and goes out to three decimal places.

But it'll only save in .004...
Forum: C4 Tech/Performance
04-05-2024, 05:33 PM
Replies: 19
Views: 451
Posted By ULTM8Z

You can pin the WB into the ECM on the OBD1 and...

You can pin the WB into the ECM on the OBD1 and then get Tunerpro to read it. I did that on my 7730 (Camaro application).

What I would also advise is to put the WB on the same side as the NB. If...
Forum: C4 Tech/Performance
03-30-2024, 12:27 PM
Replies: 11
Views: 247
Posted By ULTM8Z

Since you're in speed density mode, I wonder if...

Since you're in speed density mode, I wonder if you're getting some sort of delta-MAP event between shifts that could be causing a momentary lean out.
Forum: C4 Tech/Performance
03-29-2024, 02:58 PM
Replies: 3
Views: 112
Posted By ULTM8Z

91 TPI with manual... is that AXCN? What you...

91 TPI with manual... is that AXCN?

What you can do is activate the compare feature, then load AXCN as the compare bin against S_AUJP.

The other thing is to do a CTRL-F and search on EGR....
Forum: C4 Tech/Performance
03-28-2024, 12:41 PM
Replies: 11
Views: 247
Posted By ULTM8Z

Do you get a commanded AFR reported? Is that...

Do you get a commanded AFR reported? Is that consistent or varying? When I get datalogs, I'll see what the commanded AFR is.
Forum: C4 Tech/Performance
03-27-2024, 11:02 PM
Replies: 11
Views: 247
Posted By ULTM8Z

In $8D (90-91) they did have a flag for "lock BLM...

In $8D (90-91) they did have a flag for "lock BLM to 128" in PE. If you don't set that flag, then yeah, it'll add fuel if you enter into PE with a BLM >128.

I think it was an engine safety...
Forum: C4 Tech/Performance
03-26-2024, 09:30 PM
Replies: 7
Views: 197
Posted By ULTM8Z

Technically, no in the sense that BLM's are only...

Technically, no in the sense that BLM's are only applicable to the side with the NB O2 sensor. Although it's the batch fire that largely contributes to the problem. When you're able to tune on a...
Forum: C4 Tech/Performance
03-26-2024, 05:24 PM
Replies: 7
Views: 197
Posted By ULTM8Z

You're probably seeing the split-BLM phenomenon...

You're probably seeing the split-BLM phenomenon at low engine speeds.

I was getting something similar on my Miniram until I figured it what was happening and then constructed something to mitigate...
Forum: C4 Tech/Performance
03-26-2024, 04:33 PM
Replies: 7
Views: 197
Posted By ULTM8Z

Are you suspecting the driver side is a little...

Are you suspecting the driver side is a little richer than the passenger side?
Forum: C4 Tech/Performance
03-24-2024, 10:55 PM
Replies: 3
Views: 203
Posted By ULTM8Z

I would contact Fuel Injector Connection or South...

I would contact Fuel Injector Connection or South Bay Fuel Injectors.
Showing results 1 to 25 of 233
 
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