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Search: Posts Made By: bobxyz
Forum: performance & modifications Yesterday, 12:32 PM
Replies: 10
Views: 263
Posted By bobxyz
The wasted spark board wiring looks OK (it took...

The wasted spark board wiring looks OK (it took me a moment to realize that it was coated in RTV).

For ignitor/coil power/ground, I'd splice into the original coil power wire (blue?) to supply...
Forum: performance & modifications Yesterday, 11:02 AM
Replies: 10
Views: 263
Posted By bobxyz
Can you post a picture of how you've secured and...

Can you post a picture of how you've secured and wired the wasted spark board within the EZK?

Where are the ignitor's +12v and Ground wires connected?
Forum: aftermarket engine management 11-25-2020, 11:40 PM
Replies: 8
Views: 122
Posted By bobxyz
For E85, change the AFR _only_ in the reqfuel...

For E85, change the AFR _only_ in the reqfuel popup. For anything else that uses the WB02 sensor, e.g. AFR table, leave the AFR at 14.7.
Forum: aftermarket engine management 11-25-2020, 11:04 PM
Replies: 8
Views: 122
Posted By bobxyz
I think you need to change the AFR in the ReqFuel...

I think you need to change the AFR in the ReqFuel popup from 14.7 to 9.8? for E85, and change to your bigger injector size. This should give a more reasonable starting value.
Forum: performance & modifications 11-25-2020, 10:58 PM
Replies: 10
Views: 263
Posted By bobxyz
I think I misunderstood when you said: Do...

I think I misunderstood when you said:


Do you mean that it worked with the wasted spark board removed, and the original coil/ignitor? Or did you swap to a different non-wasted spark EZK too?
...
Forum: performance & modifications 11-25-2020, 07:21 PM
Replies: 10
Views: 263
Posted By bobxyz
The pictures posted here ...

The pictures posted here
https://www.msextra.com/forums/viewtopic.php?f=101&t=70950

shows that the J702T ignitor is not a true logic-level ignitor, but needs high current drivers. The wasted...
Forum: showroom 11-24-2020, 10:50 AM
Replies: 58
Views: 11,617
Posted By bobxyz
<iframe width="560" height="315"...

<iframe width="560" height="315" src="https://www.youtube.com/embed/3yZrIt0y084" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"...
Forum: maintenance & nonperformance 11-21-2020, 05:39 PM
Replies: 11
Views: 800
Posted By bobxyz
I think the orifice tubes are a standardized A/C...

I think the orifice tubes are a standardized A/C part used by lots of different cars. It's a ~$3 plastic part. There is also a "automatic adjusting" version for more $$$. The orifice tube is used...
Forum: maintenance & nonperformance 11-21-2020, 05:30 PM
Replies: 6
Views: 323
Posted By bobxyz
See Bentley section 250-3, or link here...

See Bentley section 250-3, or link here (https://www.volvoclub.org.uk/faq/EngineFuelinjection.html#ThrottleBodyandThrottlePositionSwitchAdjustment), on how to check and adjust the throttle linkage. ...
Forum: maintenance & nonperformance 11-19-2020, 09:55 PM
Replies: 4
Views: 382
Posted By bobxyz
Depending on what harness was used for the LH2.4...

Depending on what harness was used for the LH2.4 conversion, check the main blade fuse in the engine compartment near the battery.
Forum: maintenance & nonperformance 11-19-2020, 11:37 AM
Replies: 8
Views: 536
Posted By bobxyz
OK, I misunderstood. Plugging both brake light...

OK, I misunderstood. Plugging both brake light switch wires into the back of the cluster will turn on the brake lights and will apply a continuous +12v to the VSS pin of the speedo chip. Even...
Forum: maintenance & nonperformance 11-18-2020, 02:21 PM
Replies: 8
Views: 536
Posted By bobxyz
When the OP said: "[the customer] did some of his...

When the OP said: "[the customer] did some of his own work and ended up plugging in the brake light switch to the two ports in the back of the cluster covered by the rubber hose...." I assumed that...
Forum: maintenance & nonperformance 11-18-2020, 10:12 AM
Replies: 8
Views: 536
Posted By bobxyz
The 2 spades on the center back of the cluster...

The 2 spades on the center back of the cluster with the hose around them are tied together and are the speed signal that goes to the cruise control box. I'm not positive, but I'm pretty sure that...
Forum: maintenance & nonperformance 11-16-2020, 02:50 PM
Replies: 10
Views: 731
Posted By bobxyz
Good to hear that it's working again. I'd...

Good to hear that it's working again. I'd certainly carry a spare relay.

I'm still suspicious that something else is going on. If it goes bad again, try tracing and inspecting the wires that...
Forum: maintenance & nonperformance 11-14-2020, 03:45 PM
Replies: 24
Views: 1,208
Posted By bobxyz
Good, sounds like CPS and ignition are working...

Good, sounds like CPS and ignition are working fine and you're on to chasing fueling issues.

Before doing much else, I'd check the fuel pumps. The easy test is to jumper the fuel pump fuse, I...
Forum: maintenance & nonperformance 11-14-2020, 11:46 AM
Replies: 11
Views: 800
Posted By bobxyz
Try these threads (there's another one somewhere...

Try these threads (there's another one somewhere about the 93 vs earlier accessory bracket and V versus Straight compressor connections).
http://forums.turbobricks.com/showthread.php?t=330298...
Forum: maintenance & nonperformance 11-13-2020, 02:18 PM
Replies: 10
Views: 731
Posted By bobxyz
^^^ that's good info! You're looking for...

^^^ that's good info!

You're looking for something that can supply enough power to keep the headlights on. The headlight relay, the metal one you found, is the top suspect. Either the relay is...
Forum: maintenance & nonperformance 11-13-2020, 11:50 AM
Replies: 10
Views: 731
Posted By bobxyz
When the headlights are stuck on with ignition...

When the headlights are stuck on with ignition off and light switch off, do the headlights go off if you unplug the headlight switch?

[Looking at a '87 wiring greenbook, there's an extra headlight...
Forum: maintenance & nonperformance 11-12-2020, 05:43 PM
Replies: 24
Views: 1,208
Posted By bobxyz
It sounds like you have had at least 2 or 3...

It sounds like you have had at least 2 or 3 different issues:
- stopped running at MOT
- cracked ECU board
- damaged ignition amplifier due to blue and red/wt wires being connected at the coil...
Forum: maintenance & nonperformance 11-10-2020, 10:10 AM
Replies: 24
Views: 1,208
Posted By bobxyz
You most likely have a bad ignition power...

You most likely have a bad ignition power amplifier (also called an ignition module). For LH2.4, it should be a Bosch 0 227 100 124, and is mounted on the fender.

The blue wires are +12volts from...
Forum: maintenance & nonperformance 11-09-2020, 08:30 PM
Replies: 9
Views: 790
Posted By bobxyz
Try this:...

Try this: http://forums.turbobricks.com/showthread.php?t=357580

but you want to look for the smooth / no-holes region on the flywheel instead of the no cutouts region on the flexplate.
Forum: maintenance & nonperformance 10-30-2020, 09:01 AM
Replies: 20
Views: 1,553
Posted By bobxyz
Just check it at idle with a timing light.

Just check it at idle with a timing light.
Forum: performance & modifications 10-29-2020, 08:58 PM
Replies: 11
Views: 1,160
Posted By bobxyz
What ECU and Ignition controller are you using? ...

What ECU and Ignition controller are you using? LH2.4/EZK-116, or LH2.2/Chrysler, or KJet/Breakerless, or something else?
Forum: performance & modifications 10-29-2020, 08:56 PM
Replies: 9
Views: 908
Posted By bobxyz
Per the nice drawing from here:...

Per the nice drawing from here: https://en.wikipedia.org/wiki/Spotface you want a counter bore with a pilot (E) [click image for full size].
...
Forum: performance & modifications 10-29-2020, 09:01 AM
Replies: 11
Views: 1,160
Posted By bobxyz
You disconnect the original wire to the coil -...

You disconnect the original wire to the coil - and re-connect that wire to the MSD white wire. You then connect the MSD black wire to the now empty coil - terminal. In other words, you splice the...
Forum: performance & modifications 10-27-2020, 09:05 PM
Replies: 1
Views: 725
Posted By bobxyz
I've seen both ways of reporting VE for boosted...

I've seen both ways of reporting VE for boosted engines - some are 0 to 100%, with the boost effects being calculated separately. Some combine VE and boost together to give a VE of 0 to...
Forum: aftermarket engine management 10-27-2020, 08:53 PM
Replies: 18
Views: 1,259
Posted By bobxyz
I'm really not very good at deciphering tuning...

I'm really not very good at deciphering tuning problems from weird log files. That being said, I'd cleanup the ignition table at lower rpms -- get rid of the noisemaker entries and swap the...
Forum: aftermarket engine management 10-26-2020, 11:56 PM
Replies: 18
Views: 1,259
Posted By bobxyz
Sorry, your dropbox link is bad so I can't see...

Sorry, your dropbox link is bad so I can't see the logs or .msq

Do you have automatic EGO Control enabled? If so, try disabling it, or try half the step size, or double the events per step, or...
Forum: maintenance & nonperformance 10-23-2020, 05:37 PM
Replies: 34
Views: 5,120
Posted By bobxyz
Ahhh, much better! [FYI: the 50% and WOT...

Ahhh, much better!

[FYI: the 50% and WOT pictures look the same -- compare the bubbles.]
Forum: maintenance & nonperformance 10-22-2020, 02:55 PM
Replies: 10
Views: 1,123
Posted By bobxyz
Huh??? Can you check that number? It's not a...

Huh??? Can you check that number? It's not a standard LH2.4 ECU per the Volvo 700_900_DataPocket.pdf (http://www.myvolvolibrary.info/Tech_files2_ficheiros/700_900_DataPocket.pdf) guide
Forum: showroom 10-20-2020, 12:31 PM
Replies: 123
Views: 20,779
Posted By bobxyz
https://i.ibb.co/3N7Xnsk/Valve-Cover.jpg

https://i.ibb.co/3N7Xnsk/Valve-Cover.jpg
Forum: maintenance & nonperformance 10-19-2020, 04:13 PM
Replies: 10
Views: 1,123
Posted By bobxyz
There are instructions floating around somewhere...

There are instructions floating around somewhere on how to replace the blown injector driver transistor in the LH2.4 ECU. The low-Z injectors wouldn't damage the wiring, just the ECU.

IIRC, for...
Forum: maintenance & nonperformance 10-19-2020, 04:09 PM
Replies: 12
Views: 1,068
Posted By bobxyz
If you don't care that it doesn't look original,...

If you don't care that it doesn't look original, wgusler's posts and pictures here are what I used:
http://forums.turbobricks.com/showthread.php?t=324711&page=3

I ended up with 5.25" in front...
Forum: aftermarket engine management 10-16-2020, 07:01 PM
Replies: 13
Views: 1,843
Posted By bobxyz
A little searching found this:...

A little searching found this: http://forums.turbobricks.com/showpost.php?p=4836402&postcount=72
http://forums.turbobricks.com/attachment.php?attachmentid=12115&stc=1&d=1393218568

And this:...
Forum: aftermarket engine management 10-16-2020, 09:32 AM
Replies: 13
Views: 1,843
Posted By bobxyz
^^^ if this is still available, it would be a...

^^^ if this is still available, it would be a great solution. The DIY hall sensor is here: link (https://www.diyautotune.com/product/hall-effect-crankshaft-position-sensor/)

Hall sensors are much...
Forum: maintenance & nonperformance 10-16-2020, 09:23 AM
Replies: 6
Views: 823
Posted By bobxyz
What wire did you plug in? That connector is...

What wire did you plug in?

That connector is VSS Vehicle Speed Sensor used originally for late 80s cruise control and shift indicator. For LH2.4, the same signal goes to the ECU through a...
Forum: performance & modifications 10-15-2020, 02:47 PM
Replies: 50
Views: 3,485
Posted By bobxyz
Example of engine stand testing:...

Example of engine stand testing: http://www.revsearch.com/grooves/grooves.html

Brief Somender Singh video: https://www.youtube.com/watch?v=Sdmgydl7fU0
Forum: performance & modifications 10-14-2020, 02:03 PM
Replies: 50
Views: 3,485
Posted By bobxyz
I didn't realize that turbobricks was still one...

I didn't realize that turbobricks was still one of the top web sites for Somender Singh Grooves. There's a really long thread here (and amazingly, some of the pictures are still intact): ...
Forum: maintenance & nonperformance 10-13-2020, 07:17 PM
Replies: 25
Views: 1,679
Posted By bobxyz
I'd measure, or swap, the plug wires. And try...

I'd measure, or swap, the plug wires. And try the timing light on the coil wire pointing at the cam gear -- I think it should show the timing mark evenly at 12-3-6-9 o'clock positions.
Forum: performance & modifications 10-13-2020, 07:13 PM
Replies: 5
Views: 825
Posted By bobxyz
If it's the same as "TP31058_1 1987 740 760...

If it's the same as "TP31058_1 1987 740 760 Wiring Diagrams" pg80, then:
- white goes through a connector to green/white wire off of the speedometer connector
- blue/red is power (ign sw 15R)
-...
Forum: maintenance & nonperformance 10-13-2020, 12:25 AM
Replies: 2
Views: 600
Posted By bobxyz
Brickboard says:...

Brickboard says: https://brickboard.com/FAQ/700-900/TransmissionAuto.htm#Kickdown_Cable_Adjustment
Forum: maintenance & nonperformance 10-05-2020, 07:03 PM
Replies: 11
Views: 950
Posted By bobxyz
If you hear an initial click, but nothing else,...

If you hear an initial click, but nothing else, it's most likely a speaker wire shorted to the chassis, and the deck is automatically shuting off all the speakers to prevent damage.

With the...
Forum: performance & modifications 10-05-2020, 06:58 PM
Replies: 7
Views: 1,014
Posted By bobxyz
These might help ...

These might help
http://forums.turbobricks.com/showthread.php?p=2865196
https://people.physics.anu.edu.au/~amh110/Diff_LSD/diff_lsd_volvo_dana.htm - see sections 2&3
Forum: performance & modifications 10-02-2020, 10:19 PM
Replies: 24
Views: 3,586
Posted By bobxyz
Potential engine donor instead of trying to...

Potential engine donor instead of trying to rebuild the B21FT? https://www.facebook.com/marketplace/item/611009006244304
and...
Forum: performance & modifications 09-29-2020, 09:06 PM
Replies: 13
Views: 1,322
Posted By bobxyz
What's wrong with 240deg? Is the timing not...

What's wrong with 240deg? Is the timing not stable during cranking? I'm not sure if it will help, but is 1st Deriv Prediction turned on?

Can you rotate/flip the toothed wheel? How many teeth? ...
Forum: performance & modifications 09-29-2020, 08:41 AM
Replies: 24
Views: 3,586
Posted By bobxyz
Oh, the block is already stripped down in the...

Oh, the block is already stripped down in the car, that changes things.

First off, you want something over the top of the block to protect it from dropped tools. I'd use the head gasket to cut...
Forum: performance & modifications 09-28-2020, 12:08 AM
Replies: 24
Views: 3,586
Posted By bobxyz
There should be lifting brackets on the back of...

There should be lifting brackets on the back of the intake manifold and on the front thermostat housing. There's also one on the exhaust side around #3.
...
Forum: performance & modifications 09-26-2020, 12:19 PM
Replies: 24
Views: 3,586
Posted By bobxyz
I'd be surprised if any reputable machine shop...

I'd be surprised if any reputable machine shop would start work without having all the key parts in hand. Initially, they should be able to look at and measure the block to make sure that the...
Forum: maintenance & nonperformance 09-26-2020, 01:02 AM
Replies: 12
Views: 1,933
Posted By bobxyz
In electronics for wires that flex a lot, you...

In electronics for wires that flex a lot, you usually use "test lead wire", named for test meter probes that are always getting tossed around. Test lead wire is composed of 50, or 100, maybe 200,...
Forum: maintenance & nonperformance 09-25-2020, 07:35 PM
Replies: 10
Views: 1,274
Posted By bobxyz
That's a common problem. IPD sells a short...

That's a common problem. IPD sells a short length of the special grade submersible hose just for this - link...
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