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Anyone want a free chipped EG33 ECU and/or MAF sensor?

 

I threw a rod in the engine (now replaced by an EZ30). Pretty sure they work.
Jeff?

On Sat, Feb 4, 2023, 12:06 John Rodgers <jrodgers113@...> wrote:
Thanks for that tip. Will move it closer and see?what happens.

On Thu, Feb 2, 2023 at 10:07 PM Noras dad <norasonlydad@...> wrote:
John,
If your speed sensor is set too far away you will get this problem. Same thing with Hall effect sensors. Put your sensor closer and you'll get better pick up.
Good luck
Terry

Terry A Shaw


On Thu, 2 Feb 2023 at 01:12, John Rodgers <jrodgers113@...> wrote:
Subject says it all. Have 2.5 installed with Precis ECU the harness conversion done by Busaru. Stock '91 auto tranny and stock 14 inch wheels. At 65 mph and above the engine starts bucking. The only way to stop it is to reduce speed below 65 mph. On a few occasions I have managed?to hit 70 before bucking sets in. At 70 mph the tach reads 4000 rpm. Has anyone got any ideas about the problem and how to fix it? I should be able to turn 6500 rpm easily with this engine but I have no particular need to do faster than 70 in most cases. The VSS is Busaru and is set 4 mm clearance from stub axle flange?bolts.?

All comments and and suggestions would be appreciated,
Re: Engine rapidly off/on/off/on/off/on at speed

 

Thanks for that tip. Will move it closer and see?what happens.


On Thu, Feb 2, 2023 at 10:07 PM Noras dad <norasonlydad@...> wrote:
John,
If your speed sensor is set too far away you will get this problem. Same thing with Hall effect sensors. Put your sensor closer and you'll get better pick up.
Good luck
Terry

Terry A Shaw


On Thu, 2 Feb 2023 at 01:12, John Rodgers <jrodgers113@...> wrote:
Subject says it all. Have 2.5 installed with Precis ECU the harness conversion done by Busaru. Stock '91 auto tranny and stock 14 inch wheels. At 65 mph and above the engine starts bucking. The only way to stop it is to reduce speed below 65 mph. On a few occasions I have managed?to hit 70 before bucking sets in. At 70 mph the tach reads 4000 rpm. Has anyone got any ideas about the problem and how to fix it? I should be able to turn 6500 rpm easily with this engine but I have no particular need to do faster than 70 in most cases. The VSS is Busaru and is set 4 mm clearance from stub axle flange?bolts.?

All comments and and suggestions would be appreciated,
Re: Engine rapidly off/on/off/on/off/on at speed

 

Brent,
Mine is a stock ecu. I said it came from a Precis. I misspoke. It came from an Impreza.?

John

On Sat, Feb 4, 2023 at 8:00 AM Brent Weide <brent.weide@...> wrote:
Morning John.
Sorry you¡¯re having trouble with your conversion.
Because you have a non stock ecu we will have difficulty supporting you.
My suggestion is to use the conversion mechanic, and/or the ecu vendor (in that order) to get support for the issue.
Non stock component support conversations have limited value to our group as a whole and I will discourage them.
Best,
Brent
Re: Engine rapidly off/on/off/on/off/on at speed

 

Morning John.
Sorry you¡¯re having trouble with your conversion.
Because you have a non stock ecu we will have difficulty supporting you.
My suggestion is to use the conversion mechanic, and/or the ecu vendor (in that order) to get support for the issue.
Non stock component support conversations have limited value to our group as a whole and I will discourage them.
Best,
Brent
Re: Engine rapidly off/on/off/on/off/on at speed

 

John,
If your speed sensor is set too far away you will get this problem. Same thing with Hall effect sensors. Put your sensor closer and you'll get better pick up.
Good luck
Terry

Terry A Shaw


On Thu, 2 Feb 2023 at 01:12, John Rodgers <jrodgers113@...> wrote:
Subject says it all. Have 2.5 installed with Precis ECU the harness conversion done by Busaru. Stock '91 auto tranny and stock 14 inch wheels. At 65 mph and above the engine starts bucking. The only way to stop it is to reduce speed below 65 mph. On a few occasions I have managed?to hit 70 before bucking sets in. At 70 mph the tach reads 4000 rpm. Has anyone got any ideas about the problem and how to fix it? I should be able to turn 6500 rpm easily with this engine but I have no particular need to do faster than 70 in most cases. The VSS is Busaru and is set 4 mm clearance from stub axle flange?bolts.?

All comments and and suggestions would be appreciated,
Re: ECU reset

 

What plugs and gap are you running Sean? Copper or platinum NGKs ran best at 0.043-0.044 I've found with my 02. Smaller resulted in high end bogging.
Re: Engine rapidly off/on/off/on/off/on at speed

 

Yes 4mm? seems big. I set my SC VSS distance at 0.045 with a feeler gauge just like the plugs.
Re: ECU reset

 

It's easy to reset ECU to factory settings.? This is especially needed after cleaning out all the gunk in IACV and Throttle body and new PCV valve and associated hoses.? Reason is:? ECU still has old info stored in it, as it was desperately trying to overcome gunk.? To delete all old info in ECU, you've got to drain all electricity stored in it's capacitors, which functions to maintain memory.? First, disconnect Negative at battery.? Second, run a jumper from Positive to that removed ground wire.? Let it sit overnight.? Hook back up.? Immediately RPM's will race towards 3000 or so.? Don't panic.? It will take about 20 cycles of startup, drive, shut down for things to settle down as ECU "learns" new parameters.? Now the ECU will do all the stuff it was designed to do. BTW...this info is for 2.2 motor....but I am sure it's similar for others.

On Thursday, February 2, 2023 at 08:05:13 AM PST, SEAN GARRETT via groups.io <doit.outdoors@...> wrote:


I thought i had this procedure bookmarked ¡­ how do you reset the ECU ? Remove pos a neg terminal connectors , then ground out the pos wire ?

Recently had the power wire from alt to black box post shortened (it was overly long) and running hot to touch. This solved erratic idle issue and running rich at start. I still have some bogging at hard acceleration and very minor reving after warm up at a stop light. Yes my IAC is clean and im gonna have the TPS checked and set to proper voltage. Gonna also check vacuum hoses as well as pcv stack.

Any other ideas ?
SeanG
87 Syncro
2000 2.5
Re: Engine rapidly off/on/off/on/off/on at speed

 

I argue this is basic for working condition, but I thought your issue was at 65 mph +.?
Dont you already know it works at speeds below 65 mph ? I thought that was implicit or verified.

Just trying to keep the troubleshooting focused on your issue, above 65 mph. Not discount advice :-)

? --? Sean G


On Thursday, February 2, 2023 at 10:21:17 AM MST, John Rodgers <jrodgers113@...> wrote:
Thanks for that!


On Thu, Feb 2, 2023 at 7:40 AM mrk1957 via <mrk1957=[email protected]> wrote:
To check your speed sensor. Raise rear wheel with the sensor. Turn ignition on engine off. Rotate wheel and watch red light on sensor. The red light should on and off as you rotate the wheel and sensor passes the cv bolts?

Re: Engine rapidly off/on/off/on/off/on at speed

 

Thanks for that!


On Thu, Feb 2, 2023 at 7:40 AM mrk1957 via <mrk1957=[email protected]> wrote:
To check your speed sensor. Raise rear wheel with the sensor. Turn ignition on engine off. Rotate wheel and watch red light on sensor. The red light should on and off as you rotate the wheel and sensor passes the cv bolts?

Re: Engine rapidly off/on/off/on/off/on at speed

 

That is an exact description of what seems to be happening.? Gives me an idea of what to do next.

Thanks

On Thu, Feb 2, 2023 at 9:45 AM adam warner <madaterb@...> wrote:
This is definitely the vss sending the wrong info to the computer so it thinks it has hit maximum speed. Which hiccups the engine slowing it down.?





ECU reset

 

I thought i had this procedure bookmarked ¡­ how do you reset the ECU ? Remove pos a neg terminal connectors , then ground out the pos wire ?

Recently had the power wire from alt to black box post shortened (it was overly long) and running hot to touch. This solved erratic idle issue and running rich at start. I still have some bogging at hard acceleration and very minor reving after warm up at a stop light. Yes my IAC is clean and im gonna have the TPS checked and set to proper voltage. Gonna also check vacuum hoses as well as pcv stack.

Any other ideas ?
SeanG
87 Syncro
2000 2.5
Re: Engine rapidly off/on/off/on/off/on at speed

 

This is definitely the vss sending the wrong info to the computer so it thinks it has hit maximum speed. Which hiccups the engine slowing it down.
Re: Engine rapidly off/on/off/on/off/on at speed

 

Speed limiting with 6 pulse VSS and 14 inch wheels? Not the? same VSS but there are these technical notes? from FastForward:
?
I've had a Smallcar 4P mounted in the O2 counter that worked and then a? Smallcar CV mounted 5P VSS that? worked flawlessly.?
Re: Engine rapidly off/on/off/on/off/on at speed

[email protected]
 

To check your speed sensor. Raise rear wheel with the sensor. Turn ignition on engine off. Rotate wheel and watch red light on sensor. The red light should on and off as you rotate the wheel and sensor passes the cv bolts?
Re: Engine rapidly off/on/off/on/off/on at speed

 

¿ªÔÆÌåÓý

Maybe reduce the speed sensor distance, making it closer and see if it stops. Easy, no cost , troubleshooting step.


On Feb 2, 2023, at 5:52 AM, Casey LaCourse <caseylacourse@...> wrote:

?This is common when the speed sensor isn¡¯t working.

If you buy obd 2 scanner like an Ultragauge you can monitor vehicle speed. It won¡¯t be accurate but it is important.

If the sensor isn¡¯t working it will read 0mph.

Regards,

Casey?
978-846-1765
caseylacourse@...

On Feb 2, 2023, at 1:23 AM, John Rodgers <jrodgers113@...> wrote:

?
Going? to check in with them? today.

On Thu, Feb 2, 2023 at 12:20 AM ANDREW <andrewvanis@...> wrote:
First question - What did Busaru say when you asked them?

Andy Vanis

USA and Whatsapp +1(505) 304-5306



On Wed, Feb 1, 2023 at 11:12 PM John Rodgers <jrodgers113@...> wrote:
Subject says it all. Have 2.5 installed with Precis ECU the harness conversion done by Busaru. Stock '91 auto tranny and stock 14 inch wheels. At 65 mph and above the engine starts bucking. The only way to stop it is to reduce speed below 65 mph. On a few occasions I have managed?to hit 70 before bucking sets in. At 70 mph the tach reads 4000 rpm. Has anyone got any ideas about the problem and how to fix it? I should be able to turn 6500 rpm easily with this engine but I have no particular need to do faster than 70 in most cases. The VSS is Busaru and is set 4 mm clearance from stub axle flange?bolts.?

All comments and and suggestions would be appreciated,
Re: Engine rapidly off/on/off/on/off/on at speed

 

¿ªÔÆÌåÓý

This is common when the speed sensor isn¡¯t working.

If you buy obd 2 scanner like an Ultragauge you can monitor vehicle speed. It won¡¯t be accurate but it is important.

If the sensor isn¡¯t working it will read 0mph.

Regards,

Casey?
978-846-1765
caseylacourse@...

On Feb 2, 2023, at 1:23 AM, John Rodgers <jrodgers113@...> wrote:

?
Going? to check in with them? today.

On Thu, Feb 2, 2023 at 12:20 AM ANDREW <andrewvanis@...> wrote:
First question - What did Busaru say when you asked them?

Andy Vanis

USA and Whatsapp +1(505) 304-5306



On Wed, Feb 1, 2023 at 11:12 PM John Rodgers <jrodgers113@...> wrote:
Subject says it all. Have 2.5 installed with Precis ECU the harness conversion done by Busaru. Stock '91 auto tranny and stock 14 inch wheels. At 65 mph and above the engine starts bucking. The only way to stop it is to reduce speed below 65 mph. On a few occasions I have managed?to hit 70 before bucking sets in. At 70 mph the tach reads 4000 rpm. Has anyone got any ideas about the problem and how to fix it? I should be able to turn 6500 rpm easily with this engine but I have no particular need to do faster than 70 in most cases. The VSS is Busaru and is set 4 mm clearance from stub axle flange?bolts.?

All comments and and suggestions would be appreciated,
Re: Engine rapidly off/on/off/on/off/on at speed

 

Going? to check in with them? today.


On Thu, Feb 2, 2023 at 12:20 AM ANDREW <andrewvanis@...> wrote:
First question - What did Busaru say when you asked them?

Andy Vanis

USA and Whatsapp +1(505) 304-5306



On Wed, Feb 1, 2023 at 11:12 PM John Rodgers <jrodgers113@...> wrote:
Subject says it all. Have 2.5 installed with Precis ECU the harness conversion done by Busaru. Stock '91 auto tranny and stock 14 inch wheels. At 65 mph and above the engine starts bucking. The only way to stop it is to reduce speed below 65 mph. On a few occasions I have managed?to hit 70 before bucking sets in. At 70 mph the tach reads 4000 rpm. Has anyone got any ideas about the problem and how to fix it? I should be able to turn 6500 rpm easily with this engine but I have no particular need to do faster than 70 in most cases. The VSS is Busaru and is set 4 mm clearance from stub axle flange?bolts.?

All comments and and suggestions would be appreciated,
Re: Engine rapidly off/on/off/on/off/on at speed

 

First question - What did Busaru say when you asked them?

Andy Vanis

USA and Whatsapp +1(505) 304-5306



On Wed, Feb 1, 2023 at 11:12 PM John Rodgers <jrodgers113@...> wrote:
Subject says it all. Have 2.5 installed with Precis ECU the harness conversion done by Busaru. Stock '91 auto tranny and stock 14 inch wheels. At 65 mph and above the engine starts bucking. The only way to stop it is to reduce speed below 65 mph. On a few occasions I have managed?to hit 70 before bucking sets in. At 70 mph the tach reads 4000 rpm. Has anyone got any ideas about the problem and how to fix it? I should be able to turn 6500 rpm easily with this engine but I have no particular need to do faster than 70 in most cases. The VSS is Busaru and is set 4 mm clearance from stub axle flange?bolts.?

All comments and and suggestions would be appreciated,
Engine rapidly off/on/off/on/off/on at speed

 

Subject says it all. Have 2.5 installed with Precis ECU the harness conversion done by Busaru. Stock '91 auto tranny and stock 14 inch wheels. At 65 mph and above the engine starts bucking. The only way to stop it is to reduce speed below 65 mph. On a few occasions I have managed?to hit 70 before bucking sets in. At 70 mph the tach reads 4000 rpm. Has anyone got any ideas about the problem and how to fix it? I should be able to turn 6500 rpm easily with this engine but I have no particular need to do faster than 70 in most cases. The VSS is Busaru and is set 4 mm clearance from stub axle flange?bolts.?

All comments and and suggestions would be appreciated,
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