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Forum: aftermarket engine management Today, 09:56 PM
Replies: 15
Views: 336
Posted By bobxyz
If it's easy, can you measure a few voltages on...

If it's easy, can you measure a few voltages on the sensors at idle? Clip one meter lead to the ground bolt on the head, then measure:
- battery - post
- MAP ground pin
- TPS ground pin
- IAT...
Forum: maintenance & nonperformance Today, 09:50 AM
Replies: 31
Views: 1,073
Posted By bobxyz
I suggested radio connections due to the radio...

I suggested radio connections due to the radio and headlights turning on under high acceleration - I'm thinking extra vibration (and maybe the engine is leaning over a little more, tugging on some...
Forum: maintenance & nonperformance Yesterday, 11:41 PM
Replies: 31
Views: 1,073
Posted By bobxyz
The voltage drop tests seem good. When you had...

The voltage drop tests seem good. When you had the alternator tested, and they said bad regulator, did they give you any sort of printout with more details? I think the old Volvo alternators only...
Forum: aftermarket engine management Yesterday, 11:26 PM
Replies: 15
Views: 336
Posted By bobxyz
Looking just at the logs, the MAP sensor is fine...

Looking just at the logs, the MAP sensor is fine for a long time and then pegs at max pressure, which causes the ECU to command lots more fuel, which, I'm assuming, floods the engine and it stalls.
...
Forum: aftermarket engine management Yesterday, 02:05 PM
Replies: 15
Views: 336
Posted By bobxyz
Off hand, I can't think of a way that the ECU...

Off hand, I can't think of a way that the ECU would be putting out over 5v while still working and still logging normal voltages on the battery. I'll look at the schematics tonight.

Inside the...
Forum: aftermarket engine management 01-23-2021, 06:07 PM
Replies: 15
Views: 336
Posted By bobxyz
Hmmm, next, I'd try wiggling the MAP wires at...

Hmmm, next, I'd try wiggling the MAP wires at idle and see if you can get it to misbehave.

I don't think that the +5v Vref wire is shorting out to +12 because it's used by the TPS too, and I...
Forum: aftermarket engine management 01-23-2021, 05:23 PM
Replies: 15
Views: 336
Posted By bobxyz
Seeing more than 5v on the 5v reference is bad...

Seeing more than 5v on the 5v reference is bad and so is more than 5v out of the MAP (the MAP only gets +5v for power). Where did you measure the 7v, specifically, where were the 2 meter probes? ...
Forum: article composition 01-21-2021, 09:40 PM
Replies: 33
Views: 29,668
Posted By bobxyz
That's funny. I just looked at my unassembled...

That's funny. I just looked at my unassembled board and there's a big fat trace connecting those 2 holes on the other side of the board. So, the instructions are confused and yes, there should be...
Forum: performance & modifications 01-19-2021, 08:24 PM
Replies: 4
Views: 297
Posted By bobxyz
146 is for B230F No EGR 149 is for B230FT EGR ...

146 is for B230F No EGR
149 is for B230FT EGR
You can chip either one. Keep the original chip, if it matches your motor, as a backup.
Forum: maintenance & nonperformance 01-19-2021, 12:50 AM
Replies: 5
Views: 297
Posted By bobxyz
Check the ECU/EZK fuse, and R&R the main relay. ...

Check the ECU/EZK fuse, and R&R the main relay. Maybe you have low +12volts on both boxes. You could also check continuity on the 2nd ECU ground, pin 17.
Forum: maintenance & nonperformance 01-17-2021, 06:22 PM
Replies: 31
Views: 1,073
Posted By bobxyz
Easiest is to use a good wire stripper on the old...

Easiest is to use a good wire stripper on the old wire and see which notch fits best -- you want the insulation to be cleanly cut (no pulling hard to tear the remaining bits) but none of the strands...
Forum: maintenance & nonperformance 01-16-2021, 03:18 PM
Replies: 31
Views: 1,073
Posted By bobxyz
The burnt up alternator-to-block wire acted as a...

The burnt up alternator-to-block wire acted as a fusible link and hopefully protected the rest of the wiring. Get a good alternator in there, charge up the battery, and see if it then behaves...
Forum: maintenance & nonperformance 01-16-2021, 03:04 PM
Replies: 4
Views: 369
Posted By bobxyz
Search for "1993" here:...

Search for "1993" here: https://ozvolvo.org/archive/
One of the matches will be for a 1993 greenbook wiring diagram, which should be close to your 92 245. See if this answers your questions.
Forum: maintenance & nonperformance 01-16-2021, 01:22 PM
Replies: 31
Views: 1,073
Posted By bobxyz
This most likely damaged the rectifier diodes in...

This most likely damaged the rectifier diodes in the alternator. It would cause problems charging the battery and, depending on the damage, could cause a high drain when off. Over time, the...
Forum: maintenance & nonperformance 01-15-2021, 12:55 PM
Replies: 5
Views: 661
Posted By bobxyz
That won't work. In addition to showing the...

That won't work. In addition to showing the speed, the factory speedometer generates a VSS signal for: ECU, Cruise, Climate, and O/D Relay (AT). While ABS uses the same differential speed sensor,...
Forum: performance & modifications 01-09-2021, 05:44 PM
Replies: 29
Views: 12,015
Posted By bobxyz
Other Options for Generating LH2.4 VSS

I've been running my LH2.4 converted '85 245 GLT using the mecanical speedo cruise control sensor and a gutted electronic speedometer board for a couple years now. It still works fine, but I never...
Forum: projects & restorations 01-05-2021, 01:53 AM
Replies: 126
Views: 43,014
Posted By bobxyz
On my '85 B21FT before LH2.4 conversion, the...

On my '85 B21FT before LH2.4 conversion, the pinout on that 8 pin bulkhead connector was:
1 - black, block oil pressure sensor, goes to instrument panel 31/5 - oil pressure warning light
2 -...
Forum: aftermarket engine management 01-04-2021, 11:19 PM
Replies: 10
Views: 898
Posted By bobxyz
The Zeal board uses an older VR conditioner chip,...

The Zeal board uses an older VR conditioner chip, a National Semi LM1815. The MicroSquirt, and higher-end MS boxes, use a newer Maxim Semi MAX9926 chip. I don't know how they compare.

jbperf.com...
Forum: maintenance & nonperformance 01-04-2021, 08:47 PM
Replies: 17
Views: 1,309
Posted By bobxyz
I haven't taken my blocked valve apart, but I'd...

I haven't taken my blocked valve apart, but I'd guess that it has a little one-way valve using a spring and ball, or spring and flap, under the little hat that sits on the corner. In the above...
Forum: aftermarket engine management 01-04-2021, 08:39 PM
Replies: 10
Views: 898
Posted By bobxyz
I looked at the manual, and it says to turn the...

I looked at the manual, and it says to turn the pots fully counter clockwise. I'm not sure why that didn't work OK for you.

Are you running wasted spark? Have you tried the...
Forum: article composition 01-04-2021, 08:29 PM
Replies: 84
Views: 78,704
Posted By bobxyz
Sorry, I can't help with the knock sensor. Try...

Sorry, I can't help with the knock sensor. Try posting something like "Adding LH2.4 Knock Sensor to B21 Block?" in the Performance&Modifications section and see if someone has done this before.
...
Forum: performance & modifications 01-03-2021, 10:07 PM
Replies: 19
Views: 1,948
Posted By bobxyz
If it still misbehaves, see if you can get any...

If it still misbehaves, see if you can get any diag codes out of it before hauling it to the back pasture and putting it out of your misery. Good luck and best wishes.
Forum: aftermarket engine management 01-03-2021, 05:32 PM
Replies: 10
Views: 898
Posted By bobxyz
Looks OK. Unfortunately, the detailed...

Looks OK. Unfortunately, the detailed instructions and pictures in the first few posts in The official DSM CAS information and install guide (http://forums.turbobricks.com/showthread.php?t=224740)...
Forum: maintenance & nonperformance 01-01-2021, 05:16 PM
Replies: 10
Views: 660
Posted By bobxyz
The WB02 needs to be installed a ways away from...

The WB02 needs to be installed a ways away from the exhaust manifold, or it will overheat. Check the WB02 instructions, but 1 to 2 feet should be good. If you still have the catted downpipe, it...
Forum: aftermarket engine management 12-31-2020, 02:46 PM
Replies: 11
Views: 619
Posted By bobxyz
I'm assuming you're using one wire (spark...

I'm assuming you're using one wire (spark a,b,c,d) per coil? If the coils are true "logic level" coils, you could double them up with two coils per spark wire and use wasted spark mode. This would...
Forum: aftermarket engine management 12-31-2020, 01:59 PM
Replies: 11
Views: 619
Posted By bobxyz
Sorry, it looks like only the 4 pins in yellow...

Sorry, it looks like only the 4 pins in yellow can be used for coolant temperature based fan control using "programmable output" mode. Are you running a DSM CAS with full sequential spark?
Forum: aftermarket engine management 12-31-2020, 12:57 PM
Replies: 11
Views: 619
Posted By bobxyz
Yeah, my nerves and eyesight make SMT work pretty...

Yeah, my nerves and eyesight make SMT work pretty difficult these days. A cell phone repair shop might be able to swap the part if you get a replacement from digikey.com. I'll see if I have a...
Forum: aftermarket engine management 12-31-2020, 11:47 AM
Replies: 11
Views: 619
Posted By bobxyz
ALED (aka D16) is driven by a generic 3904 NPN...

ALED (aka D16) is driven by a generic 3904 NPN transistor (Q8), $0.05 plus shipping. How do you have the relay wired? LED pin to one side of the relay coil, and the other side of the relay coil to...
Forum: maintenance & nonperformance 12-29-2020, 03:02 PM
Replies: 17
Views: 1,309
Posted By bobxyz
Take the side cover off (non tire side) and...

Take the side cover off (non tire side) and look/feel around for the washer fluid hose. It may be out of sight above the opening. The check valve is a little black right angle fitting, about the...
Forum: performance & modifications 12-27-2020, 10:44 PM
Replies: 6
Views: 1,079
Posted By bobxyz
As mentioned already, check your fuel pressure...

As mentioned already, check your fuel pressure and that your FPR is working correctly. As a simple check, unplugging FPR at idle should run rich, and connecting the hose to a handheld vacuum pump...
Forum: article composition 12-27-2020, 10:32 PM
Replies: 84
Views: 78,704
Posted By bobxyz
K-Jet to LH2.4 Details

Here are the main items I needed to convert from K-Jet to Turbo LH2.4

Parts:
- LH2.4 wiring harness and main relay.
- Turbo ECU (cold start injector control needs to match intake manifold...
Forum: maintenance & nonperformance 12-27-2020, 04:16 PM
Replies: 12
Views: 1,191
Posted By bobxyz
I think the knock sensor is some sort of...

I think the knock sensor is some sort of piezoelectric and has high enough resistance such that it won't show anything on a meter.

The knock sensor goes to the EZK box (above the driver's feet...
Forum: maintenance & nonperformance 12-27-2020, 04:02 PM
Replies: 9
Views: 794
Posted By bobxyz
Do you have a diagram showing how your MS setup...

Do you have a diagram showing how your MS setup was wired?

Normally, there's a main relay that is energized by the ignition switch. The main relay provides power to the MS. Once the MS has...
Forum: performance & modifications 12-22-2020, 10:42 PM
Replies: 19
Views: 1,948
Posted By bobxyz
Try swapping the 2 wires from the CPS. A...

Try swapping the 2 wires from the CPS.

A 2-wire CPS is a VR Variable Reluctance magnetic sensor. It's actually a really simple sensor.

Do you remember back in science class when they...
Forum: maintenance & nonperformance 12-17-2020, 08:15 PM
Replies: 12
Views: 909
Posted By bobxyz
On the passenger's side, remove the plastic side...

On the passenger's side, remove the plastic side cover from the center console, get a flashlight, and stick your head way up against the firewall and you can see the flap. Or you can take a picture...
Forum: maintenance & nonperformance 12-17-2020, 12:03 AM
Replies: 12
Views: 909
Posted By bobxyz
From memory, I think that little bellows actuator...

From memory, I think that little bellows actuator is inside the heater box, between the very front of the box and the A/C evap core, on the top side, and accessible only through the cowl vent...
Forum: performance & modifications 12-16-2020, 04:17 PM
Replies: 19
Views: 1,948
Posted By bobxyz
Oh, I thought you were talking about a redblock. ...

Oh, I thought you were talking about a redblock. I guess I should have counted the crank bolt holes in your picture. Is this going to be a stable mate for your blue Willys?

I know very little...
Forum: performance & modifications 12-16-2020, 02:42 PM
Replies: 19
Views: 1,948
Posted By bobxyz
What engine is this going onto? Auto/Manual? ...

What engine is this going onto? Auto/Manual? And what ECU - LH2.4, or something newer?
Forum: performance & modifications 12-16-2020, 02:25 PM
Replies: 19
Views: 1,948
Posted By bobxyz
The gap vs. solid should be preserved. ...

The gap vs. solid should be preserved. Otherwise, the timing reference position may be off, and there may be electrical noise problems detecting the missing tooth section reliably. Below is what...
Forum: maintenance & nonperformance 12-16-2020, 02:17 PM
Replies: 14
Views: 1,205
Posted By bobxyz
woodenpudden - do you remember any more details...

woodenpudden - do you remember any more details of the K-Jet to LH2.2+EZK conversion wiring?

Where did the EZK wiring harness come from, and how did it get wired in? (Factory 240 LH2.2 uses...
Forum: maintenance & nonperformance 12-12-2020, 01:14 PM
Replies: 5
Views: 895
Posted By bobxyz
Have you identified the main +12v wire (normally...

Have you identified the main +12v wire (normally connected to ignition switch) and the ground wire? Have you been able to power it up?

I can't believe that there are two pure red wires -- take a...
Forum: maintenance & nonperformance 12-11-2020, 12:18 PM
Replies: 5
Views: 895
Posted By bobxyz
There's a picture of your radio, and lots of...

There's a picture of your radio, and lots of other great vintage accessories, in the
Volvo/240 Brochures/volvo_accessories_1981.pdf at
https://ozvolvo.org/archive/

From the brief description,...
Forum: maintenance & nonperformance 12-10-2020, 09:44 PM
Replies: 7
Views: 731
Posted By bobxyz
Yes, and yes. I checked, and the '89ish bracket...

Yes, and yes. I checked, and the '89ish bracket in the picture is part # 1346612.

If you do this swap, you will also need to swap from the early 240 teardrop shaped Saginaw power steering pump...
Forum: maintenance & nonperformance 12-10-2020, 06:46 PM
Replies: 7
Views: 731
Posted By bobxyz
Sorry, not my clearest posting. I've rewritten...

Sorry, not my clearest posting. I've rewritten it - OK now?
-Bob
Forum: maintenance & nonperformance 12-07-2020, 11:23 PM
Replies: 14
Views: 1,205
Posted By bobxyz
Assuming that your wiring matches an 87 or 88...

Assuming that your wiring matches an 87 or 88 LH2.2, the power to the coil comes directly from the ignition switch. It goes to the fuse block first, but continues on to the coil without going...
Forum: maintenance & nonperformance 12-05-2020, 02:00 PM
Replies: 2
Views: 689
Posted By bobxyz
Wow, you got lucky! Changing the Tooth #1 Angle...

Wow, you got lucky! Changing the Tooth #1 Angle in MS is trivial compared to pulling the engine to realign the flexplate. Assuming it was originally correct, the angle will shift in increments of...
Forum: maintenance & nonperformance 12-01-2020, 09:16 PM
Replies: 13
Views: 2,561
Posted By bobxyz
See:...

See: http://turbobricks.com/forums/showthread.php?p=6082589
Forum: performance & modifications 12-01-2020, 09:10 PM
Replies: 13
Views: 1,331
Posted By bobxyz
Replacement Mahle cast pistons aren't as easy to...

Replacement Mahle cast pistons aren't as easy to find, or as cheap, as they used to be. For example, lookup pistons for a '95 940 Turbo here:...
Forum: maintenance & nonperformance 12-01-2020, 10:13 AM
Replies: 5
Views: 1,080
Posted By bobxyz
I'd guess a partially damaged Turbo ECU, but you...

I'd guess a partially damaged Turbo ECU, but you could try swapping the main/fuel relay and see if it helps.

About the only pin difference I can think of is that the 9xx series ECUs for the later...
Forum: performance & modifications 11-30-2020, 08:43 PM
Replies: 11
Views: 1,543
Posted By bobxyz
Since TBricks search doesn't do 2 or 3 letter...

Since TBricks search doesn't do 2 or 3 letter words (AC or A/C), try searching For Sale for something like: "delete bracket" or maybe just "delete"
e.g....
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