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Search: Posts Made By: ben73
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Forum: TBI
08-02-2022, 08:35 PM
Replies: 6
Views: 438
Posted By ben73

Re: Help! Odd High MAP fault

Yes, that's exactly what happens.
The sensor is still putting it's 0-5v signal on the PCM input pin, but it is ignored.


It's been a while, but I was sure the 1st gen 7747 & 8746 etc work...
Forum: TBI
08-02-2022, 07:17 PM
Replies: 6
Views: 438
Posted By ben73

Re: Help! Odd High MAP fault

OK, I solved this.. I feel stupid, but I'll post it for anyone with the same issue who may find this thread during a search..

The MAP sensor does not work when the motor is not running on the...
Forum: TBI
07-26-2022, 05:56 AM
Replies: 6
Views: 438
Posted By ben73

Help! Odd High MAP fault

I have a strange fault I'm struggling with.

My '8625 PCM is reporting a high MAP DTC, dumping fuel and showing 100kPa constantly in Tunerpro.
However the MAP sensor itself is working properly and...
Forum: TBI
07-23-2022, 05:53 PM
Replies: 0
Views: 268
Posted By ben73

Datalogging PCM 4L60e

Hi Guys,

I'm now using my '8625 $E6 PCM to run a 4L60e.
I've installed a 0-5v pressure sensor on the trans and would like to datalog it's output.
I'd planned to use the EGR pintle position input...
Forum: DIY PROM
07-06-2022, 03:17 AM
Replies: 486
Views: 172,481
Posted By ben73

Re: TBI guys, its time to update!

Okay, I found some of my old notes and have this all figured out again.
I haven't found the DRAC yet, but I did find a schematic I drew that allows the VSS to be switched between the 700r4 and 4L60e...
Forum: DIY PROM
07-06-2022, 12:01 AM
Replies: 486
Views: 172,481
Posted By ben73

Re: TBI guys, its time to update!

Thanks for your reply Fast.

Are you saying neither VSS shown will work with the 4L60e? Bummer.
If so, what type did a Chevy truck/van use in '93? They barely exist in my part of the world, so...
Forum: DIY PROM
07-05-2022, 10:26 PM
Replies: 486
Views: 172,481
Posted By ben73

Re: TBI guys, its time to update!

Thread dig! :)

So in 2004 (holy crap!) when I put the '8625 in my '84 Corvette I also installed the wiring for a 4L60e, just in case.
Shortly afterwards I bought a junkyard 4L60e and rebuilt it,...
Forum: DIY PROM
06-15-2022, 11:54 PM
Replies: 43
Views: 4,351
Posted By ben73

Re: TunerPro RT stops recording during datalog

Thread dig!! I'm getting back into tuning after more than 10 years. My old Moates ALDL-USB from 2004 was doing exactly as described above.
I've just added the caps and it's doing rock solid comms...
Forum: TBI
05-22-2018, 08:21 PM
Replies: 4
Views: 809
Posted By ben73

Re: Unusual TBI Problem

I swapped the ICM from my spare OEM distributor into the Davis DUI, no change.
I tested the pickup coil in the DUI and it appeared ok.
I installed the old OEM distributor and it is dead. No spark,...
Forum: TBI
05-21-2018, 08:43 PM
Replies: 4
Views: 809
Posted By ben73

Re: Unusual TBI Problem

Thank you RBob, that sounds very logical.
I was going to swap the distributor, but couldn't see how that would fix it.

I will look for a 'engine running' status and also disable AE in the tune to...
Forum: TBI
05-21-2018, 03:16 PM
Replies: 4
Views: 809
Posted By ben73

Unusual TBI Problem

My 84 Corvette uses a '8625 PCM.
It's usually very reliable and starts easily after sitting for months on end.

Last week I had to move the car.
It started up just as it always does, but I shut...
Forum: TBI
05-03-2018, 05:09 PM
Replies: 11
Views: 2,286
Posted By ben73

Re: TBI Injector filters

My timing is the same. I remember it made 60 extra rwhp going from 32 to 36 deg total :)
Forum: TBI
05-03-2018, 03:57 PM
Replies: 11
Views: 2,286
Posted By ben73

Re: TBI Injector filters

That's an excellent result Tom.
I didn't realise you were still using a 7747!
Forum: TBI
05-03-2018, 01:15 AM
Replies: 11
Views: 2,286
Posted By ben73

Re: TBI Injector filters

So how did it go on the Dyno Tom?
Forum: TBI
04-07-2018, 11:23 PM
Replies: 11
Views: 2,286
Posted By ben73

Re: TBI Injector filters

Hi Tom,

I resurface for air every few years :)

I got the car running and thought that one injector looked like it was spraying less than the other, so I removed it and saw that the little side...
Forum: TBI
03-27-2018, 05:32 AM
Replies: 1
Views: 1,054
Posted By ben73

IAC follower

I have a problem where the 2.20" TB's on my Crossfire Corvette make the throttle too touchy just off idle.

It cruises at 65mph with TPS at about 3% and this makes it a little unpleasant to drive....
Forum: TBI
03-24-2018, 01:38 AM
Replies: 11
Views: 2,286
Posted By ben73

Re: TBI Injector filters

That makes sense, thank you.
Forum: TBI
03-22-2018, 06:28 PM
Replies: 11
Views: 2,286
Posted By ben73

TBI Injector filters

Hi guys,

I haven't been around here for many years, but I'm starting to have some interest in my Crossfire Corvette again so I'm going over it, fixing all the things that go bad when left to sit...
Forum: DIY PROM
03-13-2015, 01:35 AM
Replies: 5
Views: 8,720
Posted By ben73

Re: So which BIN/PCM/ECU whatever do i have?

Using Tunercat's 'Caldata' program.

Ben.
Forum: TBI
12-22-2014, 05:06 PM
Replies: 13
Views: 1,960
Posted By ben73

Re: TBI extra injector drivers?

It's been discussed here many times in the 10+ years I've been reading this board and playing with TBI/CFI, but I don't recall anyone actually doing it..

A 2" BBC TBI will supply enough air/fuel...
Forum: TBI
12-21-2014, 06:35 AM
Replies: 13
Views: 1,960
Posted By ben73

TBI extra injector drivers?

Hey Guys,
I haven't been on here in a long while.

I wanted to ask what the current best way is to drive 2 extra TBI injectors.
Does someone make an injector driver board, or is there a SSR...
Forum: DFI and ECM
10-26-2014, 03:42 PM
Replies: 6
Views: 2,495
Posted By ben73

Re: ALDL fuel data messages (MPG display retrofit with TBI)

Did you make any more progress with this project?

I'm attempting something similar. I want to get the MPG display working in my early C4 Vette that uses a later TBI truck PCM....
Forum: DIY PROM
03-31-2013, 06:17 PM
Replies: 10
Views: 698
Posted By ben73

Re: What was it called?

Dominic!
You still lurk here too from time to time?
I see you are onto your 2nd ZR-1 now?
The sig pic looks NICE :)

Ben.
Forum: DIY PROM
03-30-2013, 03:18 PM
Replies: 10
Views: 698
Posted By ben73

Re: What was it called?

DOH! Thanks RBob, my memory is mush :)
I was thinking that maybe it was Panalyzer.. I found an old copy on my computer from about 2002, but it didn't do what I remembered either :)

Thanks for...
Forum: DIY PROM
03-30-2013, 01:01 AM
Replies: 10
Views: 698
Posted By ben73

Re: What was it called?

No, I used winbin back then too.. It was no more than a horrible little .bin editor :)

I'll have to search my old laptop again, it's bound to be there somewhere...
Thanks!
Forum: DIY PROM
03-29-2013, 11:17 PM
Replies: 10
Views: 698
Posted By ben73

What was it called?

Hey Guys,

I haven't been around here for a long time, and have forgotten a LOT.

I remember there was a neat little piece of software I used to have that you could use to open an unknown .bin...
Forum: TBI
11-09-2012, 11:25 PM
Replies: 16
Views: 4,938
Posted By ben73

Re: "84 Vette Parallel Plumb Pics?

I couldn't find a pic of mine in my photobucket account, but you can see it in this video:
http://i4.photobucket.com/albums/y138/ben73/Corvette/th_IMG_0111.jpg...
Forum: DFI and ECM
08-10-2010, 10:03 PM
Replies: 2
Views: 897
Posted By ben73

Re: got my Ostrich 2.0 now some questions

You need to select "emulation mode' within Tunerpro to make 'live' changes.
Forum: DIY PROM
08-07-2010, 03:47 AM
Replies: 486
Views: 172,481
Posted By ben73

Re: TBI guys, its time to update!

Thanks for the reply. I'll have to go back over everything, it has been a few years.
I am still using $E6, with my own .xdf, but I did include practically everything related to the TCC.. I can't...
Forum: DIY PROM
08-06-2010, 05:22 PM
Replies: 486
Views: 172,481
Posted By ben73

Re: TBI guys, its time to update!

Good to see this thread I started almost six years ago still have some interest! Some of the geniuses here have taken this further than I ever imagined.

I never did get the PCM to control the...
Forum: DFI and ECM
11-20-2009, 12:52 PM
Replies: 3
Views: 664
Posted By ben73

Re: Engine Cutout After WB Install and BIN Changes

Thanks RBob, good to know I'm not the only one.
My ZT-2 is at least 4 years old now, I might ask them about this issue and determine if it may have been fixed in a more recent firmware update.
...
Forum: DFI and ECM
11-19-2009, 03:22 PM
Replies: 3
Views: 664
Posted By ben73

Re: Engine Cutout After WB Install and BIN Changes

The thread is a few months old but I see nobody responded.
My ZT-2 looks at WBo2, RPM, TPS and MAP. It is grounded properly, but every now and then it makes the TPS signal as logged from the ECM go...
Forum: Tech / General Engine
06-29-2009, 12:19 AM
Replies: 127
Views: 29,650
Posted By ben73

Re: pre -87 block to accept roller cam

FWIW, mine is still running nicely after 5 years.....
Forum: DFI and ECM
11-11-2007, 04:19 AM
Replies: 1
Views: 539
Posted By ben73

zeitronix simulated NB output

Has anyone looked at the simulated NB output from a Zeitronix WB??
I am wondering if it acts like a true NB, ie switching from ~0.2v when leaner than stoich and ~0.9v when richer. (and very little...
Forum: DIY PROM
10-23-2007, 12:45 AM
Replies: 11
Views: 2,211
Posted By ben73

Re: Miniramed 383 Professional Dyno Tune results

Without more engone specs, its hard to know how much it should be making, but a "383 ci miniram engines with a big cam" should be making more than 280hp at the tyres.
Note that the Dyno Dynamics...
Forum: TBI
10-23-2007, 12:32 AM
Replies: 3
Views: 1,264
Posted By ben73

Re: What's anothername for an IAT sensor????

MAT
Forum: DIY PROM
04-22-2007, 03:58 PM
Replies: 486
Views: 172,481
Posted By ben73

Re: TBI guys, its time to update!

Here they:

http://www.freewebs.com/ben73/BHDC.BIN

http://www.freewebs.com/ben73/BHDF.BIN
Forum: TBI
03-11-2007, 08:26 PM
Replies: 13
Views: 1,416
Posted By ben73

You MUST check the temp sensor in the front of...

You MUST check the temp sensor in the front of the manifold.
It will, and often causes the symptoms you are describing?
Forum: Tech / General Engine
11-30-2006, 07:04 PM
Replies: 127
Views: 29,650
Posted By ben73

I made an adjustable pushrod to determine the...

I made an adjustable pushrod to determine the length, then ordered a set at that length. Most good suppliers will sell them in 0.050" increments.
Forum: DIY PROM
11-15-2006, 02:11 PM
Replies: 8
Views: 3,317
Posted By ben73

According to caldata, CJT comes from a 1984...

According to caldata, CJT comes from a 1984 F-Body with an LG4 (5.0L 4BBL) and auto trans...
So I think the anaswer to your question is 'no'...
Forum: DIY PROM
11-06-2006, 02:28 PM
Replies: 12
Views: 1,974
Posted By ben73

Sounds like you have no real reason to burn...

Sounds like you have no real reason to burn chips, so I'd just get an Ostrich and and ALDU1 and save a few bucks in the process.
Thats what I use. I haven't touched my chip burner since the Ostrich...
Forum: DIY PROM
11-06-2006, 01:56 PM
Replies: 13
Views: 1,710
Posted By ben73

Dom, FWIW, and I know every combo is...

Dom,

FWIW, and I know every combo is different, but I raced mine last week and tried leaning it at WOT from 12.5-12.8 to 12.8-13.0 and it went 4mph slower right away! Iput that fuel straight back...
Forum: DIY PROM
11-05-2006, 09:40 PM
Replies: 7
Views: 901
Posted By ben73

I can't explain why it has only started now,...

I can't explain why it has only started now, unless its a result of my constant tinkering. I have just hooked up the 0-5v WB output, so maybe that screwed with the ground reference?? Who knows?!?!? ...
Forum: DIY PROM
11-05-2006, 03:59 PM
Replies: 7
Views: 901
Posted By ben73

Ok, I just fixed the problem. It IS a ground...

Ok, I just fixed the problem. It IS a ground loop of some sort..
You must ground one of the brown 'sensor ground' wires at pin 8 or 11.

When I initially installed the Z box I wondered if this...
Forum: DIY PROM
11-05-2006, 04:41 AM
Replies: 7
Views: 901
Posted By ben73

I do know of one other guy on the crossfire forum...

I do know of one other guy on the crossfire forum who had the issue, but I didn't know that Dominic did also.

It must be a ground loop or similar.. I will have another play with it tomorrow and...
Forum: DIY PROM
11-05-2006, 01:57 AM
Replies: 7
Views: 901
Posted By ben73

Zeitronix users please read

I have had my zeitronix for a year or more now and its been relatively trouble free.
From day one I have datalogged TPS and MAP along with RPM and obviously AFR.
A few weeks ago, the 'Z' started...
Forum: DIY PROM
11-03-2006, 04:35 PM
Replies: 486
Views: 172,481
Posted By ben73

Many thanks for that! What is a CPI Manifold...

Many thanks for that! What is a CPI Manifold Tuning Valve anyhow??
I've never come across that terminology before????
Forum: DIY PROM
11-03-2006, 04:16 PM
Replies: 486
Views: 172,481
Posted By ben73

Well my car sat for the last year or more while I...

Well my car sat for the last year or more while I did other things, but I'm back into it now with fresh enthusiasm and getting reaquainted with the PCM.

HaulnA$$, which pin is the CPI Manifold...
Forum: DIY PROM
11-02-2006, 10:20 PM
Replies: 486
Views: 172,481
Posted By ben73

I had it working on the linear egr input also,...

I had it working on the linear egr input also, but I didn't like doing the egr% - AFR conversion when looking at the trendlines in datamaster. Have you rescaled the EGR to represent EGR?? It would...
Forum: DIY PROM
10-31-2006, 11:09 PM
Replies: 486
Views: 172,481
Posted By ben73

Well almost 2 years later I have actually done...

Well almost 2 years later I have actually done this!
I have the 0-5v output from my Zeitronix WB connected to the MAT input and have rescaled it so that 14.7 appears as 147F etc etc..

There is a...
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