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Search: Posts Made By: bobxyz
Forum: maintenance & nonperformance Yesterday, 08:56 AM
Replies: 11
Views: 196
Posted By bobxyz
What distributor, or sensor, do you have that...

What distributor, or sensor, do you have that senses rotation? If it's a hall sensor, or maybe a VR sensor, accidentally zapping it with plug voltage could have caused damage. You could try heating...
Forum: showroom 10-24-2021, 07:56 PM
Replies: 10
Views: 274
Posted By bobxyz
You can still buy Hella H1 and H4 e-code...

You can still buy Hella H1 and H4 e-code conversion kits (amazon: "Hella 5 3/4" conversion"), which are a nice upgrade. If you add these, you'll want to add a headlight relay...
Forum: performance & modifications 10-24-2021, 12:52 PM
Replies: 4
Views: 213
Posted By bobxyz
IIRC, I installed my bmw squirters with the...

IIRC, I installed my bmw squirters with the washer and there was still good clearance. Check that you drilled the correct side of the piston -- look at the crank flanges as they spin around and...
Forum: maintenance & nonperformance 10-22-2021, 06:27 PM
Replies: 23
Views: 417
Posted By bobxyz
NVM

NVM
Forum: performance & modifications 10-20-2021, 07:32 PM
Replies: 9
Views: 528
Posted By bobxyz
As a temporary diagnostic, I'd pull and plug, or...

As a temporary diagnostic, I'd pull and plug, or loop-over, the various vacuum nipples on the intake manifold to see if the noise goes away. Keep the big brake booster hose in place, but the cabin...
Forum: performance & modifications 10-19-2021, 08:59 AM
Replies: 11
Views: 538
Posted By bobxyz
See the last few posts here for an inline sensor,...

See the last few posts here for an inline sensor, and a right angle converter:
http://forums.turbobricks.com/showthread.php?p=6217209#post6217209
Forum: performance & modifications 10-14-2021, 12:03 AM
Replies: 27
Views: 1,494
Posted By bobxyz
How are you measuring the ~4psi normally and 8psi...

How are you measuring the ~4psi normally and 8psi with hose pinched off? Can you check this calibration with a different gauge and a bicycle pump, or something similar? Maybe there's a big leak in...
Forum: maintenance & nonperformance 10-12-2021, 07:34 PM
Replies: 5
Views: 518
Posted By bobxyz
The cabin A/C switch energizes the A/C relay,...

The cabin A/C switch energizes the A/C relay, which sends power to one side of the over-pressure switch (and to the compressor clutch through the accumulator pressure switch). When the over-pressure...
Forum: aftermarket engine management 10-10-2021, 07:56 PM
Replies: 2
Views: 373
Posted By bobxyz
What MS2 pin are you using for tachout, and what...

What MS2 pin are you using for tachout, and what circuit drives the relay and tach? You might try a 1K ohm resistor across the relay coil pins and see if it makes it any better or worse (it will...
Forum: maintenance & nonperformance 10-07-2021, 08:25 PM
Replies: 9
Views: 758
Posted By bobxyz
^^^ Yes, the K-Jet idle switch is the opposite of...

^^^ Yes, the K-Jet idle switch is the opposite of the EFI idle switch -- K-Jet is Opened when at idle; EFI is Closed at idle. I'm sure that swapping throttle bodies without changing the switch...
Forum: projects & restorations 10-07-2021, 08:18 PM
Replies: 45
Views: 17,615
Posted By bobxyz
Wow, that brick is quick, congratulations Ken!...

Wow, that brick is quick, congratulations Ken! :cool:

I was curious how Bandimere went from ~5500' elevation to a ~7250' density altitude, but found the explanation here (nice site for racers):...
Forum: projects & restorations 10-06-2021, 07:31 PM
Replies: 42
Views: 8,544
Posted By bobxyz
If you don't plan on changing the belt hub very...

If you don't plan on changing the belt hub very often, you can make a TBcheap B21FT crank holder with a scrap of 3/4" plywood and a 2 1/8" hole saw (standard for house door locksets). Just bolt it...
Forum: performance & modifications 10-05-2021, 08:43 AM
Replies: 21
Views: 1,942
Posted By bobxyz
The 2.03 chip doesn't produce the correct LS1...

The 2.03 chip doesn't produce the correct LS1 pattern. Supposedly, the 2.04 chip does.

If you want to try a varying width pattern on the benchtop, change your JimStim pattern and the MS Ignition...
Forum: performance & modifications 10-04-2021, 10:30 PM
Replies: 21
Views: 1,942
Posted By bobxyz
Are the DIP switches on the JimStim set for the...

Are the DIP switches on the JimStim set for the LS1 pattern? Your log looks like the JimStim is producing a simple squarewave (all switches off). The red spikes are each lack-of-sync found (i.e. MS...
Forum: maintenance & nonperformance 09-29-2021, 08:49 PM
Replies: 9
Views: 1,061
Posted By bobxyz
If you shorted it out while it wasn't running,...

If you shorted it out while it wasn't running, I'd guess that the alternator and regulator are fine. You +12v battery-to-starter-to-alternator and alternator-to-block ground wiring may be toasty. ...
Forum: aftermarket engine management 09-28-2021, 07:01 PM
Replies: 6
Views: 1,108
Posted By bobxyz
If you use a "spare injector low side output to...

If you use a "spare injector low side output to drive the speedo", you need the 1K pullup resistor. If you use a "spare logic level spark output", you can skip the 1K pullup. The speedo circuit...
Forum: performance & modifications 09-27-2021, 11:25 PM
Replies: 21
Views: 1,942
Posted By bobxyz
Jumpering primary tach to one of the LEDs on the...

Jumpering primary tach to one of the LEDs on the jimstim board should work fine. You need to have the jimstim plugged into the MS2 -- the LEDs are powered off of +5Vref from MS. If this isn't...
Forum: performance & modifications 09-27-2021, 02:54 PM
Replies: 21
Views: 1,942
Posted By bobxyz
If you're seeing a varying tooth pattern in the...

If you're seeing a varying tooth pattern in the high speed loggers, then the hardware & wiring are probably OK. If it's then not detecting sync (look at Sync Loss and Sync Loss Reason in a normal...
Forum: performance & modifications 09-27-2021, 09:04 AM
Replies: 21
Views: 1,942
Posted By bobxyz
OK, I wasn't sure what LS1 uses for signals. If...

OK, I wasn't sure what LS1 uses for signals. If it's crank input only, it's a varying tooth pattern and should show up in either of the high speed tooth logs. If not, check that:
1) pullup...
Forum: maintenance & nonperformance 09-26-2021, 11:11 PM
Replies: 6
Views: 889
Posted By bobxyz
When the A/C is on, it runs the fan at low even...

When the A/C is on, it runs the fan at low even if the fan switch is off. The white wire may be part of this (I didn't look at the greenbooks).
Forum: performance & modifications 09-26-2021, 11:07 PM
Replies: 21
Views: 1,942
Posted By bobxyz
I forget the proper name, but have you looked at...

I forget the proper name, but have you looked at the appropriate high speed tooth or composite log (see the Setting Up Guide)?

To check the MS crank/cam input circuits, I think you can set the...
Forum: aftermarket engine management 09-26-2021, 10:59 PM
Replies: 57
Views: 16,423
Posted By bobxyz
Great, I love happy endings. :) One more...

Great, I love happy endings. :)

One more thought on the MAP sensor - it might be a vibration problem and not heat. Inside the sensor is some sort of mechanical structure to sense the pressure,...
Forum: aftermarket engine management 09-26-2021, 10:56 PM
Replies: 6
Views: 1,108
Posted By bobxyz
I looked at cleanflametrap's speedo schematics...

I looked at cleanflametrap's speedo schematics here (http://cleanflametrap.com/speedo.html), and it's a little more complex to convert from MS3pro to a suitable 240 speedo VSS signal. This should do...
Forum: aftermarket engine management 09-25-2021, 12:06 PM
Replies: 6
Views: 1,108
Posted By bobxyz
If you want to use the 1982 factory gauge, you'll...

If you want to use the 1982 factory gauge, you'll need an electronic to mechanical converter box, and an appropriate short speedo cable to match the box and speedo connectors. Something like this:...
Forum: aftermarket engine management 09-25-2021, 11:54 AM
Replies: 57
Views: 16,423
Posted By bobxyz
Since it's cheap and easy, I'd mount the MAP...

Since it's cheap and easy, I'd mount the MAP sensor in the cabin, or at least on a fender, well away from the engine heat. The extra few feet of hose won't make any difference (pressure waves travel...
Forum: aftermarket engine management 09-23-2021, 08:09 PM
Replies: 43
Views: 14,487
Posted By bobxyz
Bob's Drive to Work and Back

It lives! :cool:


https://i.ibb.co/JphQY1f/LH-Monitor-under-dash-temporary.jpg (https://ibb.co/JphQY1f)

https://www.dropbox.com/s/3mi18349ww4ar2v/1st%20ezk%20logs%20edited.zip?dl=0

So many...
Forum: maintenance & nonperformance 09-22-2021, 08:28 PM
Replies: 8
Views: 1,280
Posted By bobxyz
For 8valve B230 ECUs, there are Turbo and NA...

For 8valve B230 ECUs, there are Turbo and NA versions, plus EGR and non-EGR variations. I think the most common late model NA ECU is the 951. For turbo non-EGR, there's the 937. I've seen mixed...
Forum: aftermarket engine management 09-22-2021, 08:17 PM
Replies: 57
Views: 16,423
Posted By bobxyz
IIRC, you had a log of your original failure...

IIRC, you had a log of your original failure where the MAP sensor just got stuck at a high value, which I assume flooded the engine. For the CAS, you can look at "Lost Sync Count", and "Lost Sync...
Forum: aftermarket engine management 09-22-2021, 08:11 PM
Replies: 43
Views: 14,487
Posted By bobxyz
Sorry, I'm experiencing technical difficulties. ...

Sorry, I'm experiencing technical difficulties. MS TrustedInstaller royally trashed my old laptop. R.I.P. Samsung NB30. I have a new laptop on order. Once it arrives, I figure ~4 hours to get it...
Forum: maintenance & nonperformance 09-22-2021, 09:01 AM
Replies: 11
Views: 1,193
Posted By bobxyz
If the battery seems good and the turn signals...

If the battery seems good and the turn signals are all blinking correctly and bright, I'd suspect the wiring to the voltage gauge. There should be a 3 pin connector on the back bottom of the...
Forum: performance & modifications 09-21-2021, 07:51 PM
Replies: 33
Views: 20,703
Posted By bobxyz
Wow, that's an awesome find!!! The 4 pulse...

Wow, that's an awesome find!!!

The 4 pulse per rev is the same as I'm running using the cruise control sensor on the back of the speedo - seems to work fine even though it's +-2.5x slower than a...
Forum: performance & modifications 09-18-2021, 12:44 PM
Replies: 6
Views: 1,126
Posted By bobxyz
With surviving pictures:...

With surviving pictures: http://forums.turbobricks.com/showthread.php?t=277297
Forum: aftermarket engine management 09-17-2021, 07:44 PM
Replies: 57
Views: 16,423
Posted By bobxyz
I found a manual for your craftsman meter, and...

I found a manual for your craftsman meter, and the 9v BAT setting only loads the signal with a 1.5K resistor (6mA), which won't affect your measurements. The 1.5v BAT setting adds a 15ohm load...
Forum: maintenance & nonperformance 09-17-2021, 07:29 PM
Replies: 9
Views: 1,470
Posted By bobxyz
1) are there any EZK codes, or just 1-1-1 ? 2)...

1) are there any EZK codes, or just 1-1-1 ?
2) does the CEL/MIL work? when did it come on?
3) has anyone else attempted to fix it before you?
4) I don't know if it's possible to mis-connect, but...
Forum: aftermarket engine management 09-15-2021, 09:58 PM
Replies: 57
Views: 16,423
Posted By bobxyz
Uhhh, I looked at your video and you want to set...

Uhhh, I looked at your video and you want to set your meter to the 20V DC position. I don't know what the 9V BAT position does, but it might be screwing up all your measurements, especially if it's...
Forum: maintenance & nonperformance 09-15-2021, 09:54 PM
Replies: 7
Views: 874
Posted By bobxyz
The OEM faceplate is for flat-front gauges, it...

The OEM faceplate is for flat-front gauges, it won't work if the gauge front sticks out. My Innovate AFR gauge has a bubble front. I just used a flat blanking plate and cut a hole in it with a 2...
Forum: maintenance & nonperformance 09-15-2021, 09:35 PM
Replies: 8
Views: 2,381
Posted By bobxyz
Don't the original ones all look like this? ...

Don't the original ones all look like this?
https://i.ibb.co/pfFPRY1/85-melted-headlight-switch-connector.jpg

It's really easy to add a cube relay to prevent overheating the headlight switch. ...
Forum: aftermarket engine management 09-14-2021, 11:21 PM
Replies: 43
Views: 14,487
Posted By bobxyz
TLDR: come back in a few days to a week. I'm...

TLDR: come back in a few days to a week. I'm hoping to have my first real LH2.4 log very soon.

Wow, just over 3 months since getting prototype boards back from China and I still haven't generated...
Forum: aftermarket engine management 09-10-2021, 05:36 PM
Replies: 43
Views: 14,487
Posted By bobxyz
Yeah, that bobxyz guy can be a real slacker when...

Yeah, that bobxyz guy can be a real slacker when work/family/Summer intervene. I'll see if I can kick his butt to put together an update in the next few days. :-P
Forum: performance & modifications 09-10-2021, 05:34 PM
Replies: 23
Views: 1,947
Posted By bobxyz
How's the MaxxECU Sport do for some of the...

How's the MaxxECU Sport do for some of the MegaSquirt-II/MicroSquirt problem areas?
- 60-2 flywheel with a VR sensor?
- injector deadtime/offset adjustment and voltage/temperature compensation?
-...
Forum: maintenance & nonperformance 09-03-2021, 06:40 PM
Replies: 6
Views: 912
Posted By bobxyz
It's a pretty beefy bracket, and a really heavy...

It's a pretty beefy bracket, and a really heavy compressor. Once you get it off, if flexing is a worry, you could easily weld a couple diagonal braces.

(For fun, you can try to take the...
Forum: performance & modifications 09-03-2021, 06:25 PM
Replies: 6
Views: 1,009
Posted By bobxyz
You just need a couple generic 1K 1/4W 5%...

You just need a couple generic 1K 1/4W 5% resistors - pick one:
https://www.diyautotune.com/product/megasquirt-pullup-resistors-39modkit-39/...
Forum: maintenance & nonperformance 09-03-2021, 03:27 PM
Replies: 14
Views: 1,269
Posted By bobxyz
Check that your engine mounts aren't shot, which...

Check that your engine mounts aren't shot, which might allow the engine to tilt and stretch the harness cables. Just shove sideways firmly and see if it moves.
Forum: aftermarket engine management 08-31-2021, 07:52 PM
Replies: 2,348
Views: 2,164,195
Posted By bobxyz
Great, glad that the Jetronic site and all the...

Great, glad that the Jetronic site and all the bins/xdfs are back.

From the home page:

That's very interesting -- is there a write-up somewhere of what was learned?

TIA,
Bob
Forum: performance & modifications 08-22-2021, 05:46 PM
Replies: 80
Views: 16,599
Posted By bobxyz
Post #10 is talking about the Bosch EZ117K ICU...

Post #10 is talking about the Bosch EZ117K ICU Ignition Control Units. There are 2 versions, both Bosch part number 0 261 201 012. The 2 board version, with the Intel (Philips) 8049 CPU, has a...
Forum: aftermarket engine management 08-22-2021, 05:33 PM
Replies: 57
Views: 16,423
Posted By bobxyz
^^^ That's great info. I'd check really...

^^^ That's great info. I'd check really carefully that the sensor ground and the power ground on the injectors isn't swapped somewhere. Check too that your original injector pinout info is from a...
Forum: performance & modifications 08-22-2021, 05:28 PM
Replies: 150
Views: 26,270
Posted By bobxyz
If you can grab the top hose, then your...

If you can grab the top hose, then your thermostat might be stuck or in backwards (I think backwards is only possible with skinny aftermarket thermostats).
Forum: maintenance & nonperformance 08-14-2021, 01:45 PM
Replies: 14
Views: 2,048
Posted By bobxyz
You're right, LH2.2 doesn't have a CEL. I wasn't...

You're right, LH2.2 doesn't have a CEL. I wasn't sure when the 740s went to LH2.4.

Let's say that you're running normally at 3K RPM under boost. There will be a slight vacuum between the intake...
Forum: maintenance & nonperformance 08-14-2021, 12:55 PM
Replies: 14
Views: 2,048
Posted By bobxyz
I'd guess on a collapsing hose, but checking the...

I'd guess on a collapsing hose, but checking the turbo can't hurt -- when the engine is cold, see if you can spin the turbo impeller by hand. Also try pushing it side-to-side and top-to-bottom while...
Forum: performance & modifications 08-14-2021, 12:47 PM
Replies: 24
Views: 4,815
Posted By bobxyz
The 954 is about the best of the LH2.4 boxes. ...

The 954 is about the best of the LH2.4 boxes. Its factory chip is for Turbo (bigger injectors) and EGR. Is the 760 engine/exhaust manifold setup for EGR? I think you can use the 954 with a...
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