- -
UserInfo

Welcome Anonymous




Membership:
Latest: Micks66
New Today: 0
New Yesterday: 0
Overall: 896

People Online:
Members: 5
Visitors: 1
Bots: 6
Total: 12
Who Is Where:
Members:
DwayneForums
lucy066Forums
Visitors:
01. News
 Bots:
01. Forums
02. Forums
03. Forums
04. Photo Gallery
05. CPGNuCalendar
06. Forums
Hidden: 3
Staff Online:

No staff members are online!
We have received
34281259
page views since
July 27, 2010

Hits New Today: 10421
Hits New Yesterday: 18833

Server Time
21 January 2018 16:20:42 AEDT (GMT +11)
Mustang Technical Discussion > Mustang Projects > Microsquirt failed HELP!! > Community Forums > Mustang Forum Australia - Mustang Tech

View posts since last visitView posts last 24 hoursView unanswered posts
Forum Index > Mustang Projects

Microsquirt failed HELP!! Reply to topic

Go to page 1, 2, 3 Next
Author Message
lukep6470
Mustang Star

Offline
Joined: Jan 06, 2014
Posts: 459
Location: Brisbane

0 👍 / 0 👎


Hi,

My Microsquirt has failed. It appears the injector driver is just holding the injectors on and is pumping raw fuel into the motor.

All the sensors are reading OK just the car is running rich like a modern car on limp home mode.

Does anyone in Brisbane (Or Aus) have a Microsquirt or EECIV connector compatible Megasquirt that I could borrow for a week just to get the car back to the panelbeaters for an inspection?

If you have a new one you can spare I'll pay the going rate to replace it like for like. Please I just need the car on the road this week.

If a Holley could take 60 PSI fuel I'd put it back on!!


View user's profile
ozbilt
Site Admin

Offline
Joined: Jul 27, 2010
Posts: 10363
Location: Now at the Duggo Ranch

0 👍 / 0 👎


lukep6470 wrote


If a Holley could take 60 PSI fuel I'd put it back on!!


Put an adjustable regulator in the line.


Kerry

It is easier to get older than it it is to get wiser

View user's profile
lukep6470
Mustang Star

Offline
Joined: Jan 06, 2014
Posts: 459
Location: Brisbane

0 👍 / 0 👎


I can't the regulator is a C5 Corvette fuel filter which is next to the tank.


View user's profile
lukep6470
Mustang Star

Offline
Joined: Jan 06, 2014
Posts: 459
Location: Brisbane

0 👍 / 0 👎


So the new Microsquirt arrived, I flashed it and plugged it in. The car ran just as bad 😡

I went through and checked there wasn't a short in the wiring and it all looked OK.

I decided for s&*ts and giggles to unplug all the injectors and try to start the car. Guess what it ran better!!! Wall Bash

So it turned out that after 2years of operation at least 4-5 of the no-name Bosch knock-off 42lb injectors had seized open. I replaced them with a set of genuine 36s and I'm back in business. 😂

Just posting this in case someone else has a similar problem.


View user's profile
hybrid
Mustang King

Offline
Joined: Jul 27, 2010
Posts: 8502

0 👍 / 0 👎


Sorry Luke, I didn't even see your original post.
I would have been happy to lend you mine temporarily.


View user's profilePhoto Gallery
lukep6470
Mustang Star

Offline
Joined: Jan 06, 2014
Posts: 459
Location: Brisbane

0 👍 / 0 👎


That's ok. I decided it's a good idea to have a spare anyway.


View user's profile
boofhead
Mustang King

Offline
Joined: Nov 02, 2010
Posts: 4501
Location: Brisbane

0 👍 / 0 👎


Interesting. Glad it is sorted.

You can use the second Microsquirt as a gearbox ECU (if you go that way at some point).


I will someday think of something clever to say.

View user's profile
lukep6470
Mustang Star

Offline
Joined: Jan 06, 2014
Posts: 459
Location: Brisbane

0 👍 / 0 👎


Yeah the AOD is being a bit of a PITA is it hangs on far too long when slowing down.

Upshift is great but waiting until 800RPM to change back to first just sucks.


View user's profile
hybrid
Mustang King

Offline
Joined: Jul 27, 2010
Posts: 8502

0 👍 / 0 👎


What valve body are you using?
You might need a minor TV adjustment.


View user's profilePhoto Gallery
lukep6470
Mustang Star

Offline
Joined: Jan 06, 2014
Posts: 459
Location: Brisbane

0 👍 / 0 👎


It's a B&M transmission with all their bits in it. Once you have a shift kit in an AOD the TV adjustment only impacts upshift points and kickdown, the transmission will never slip if you have it set too low. I currently have it set to upshift like a stock transmission under light throttle.

Apparently downshift (Not kickdown) is up to the governor. It appears it is end user serviceable as it is in the tail section and you don't have to drop the pan or valvebody. I'm thinking of just buying a new one and slapping it in.


View user's profile
hybrid
Mustang King

Offline
Joined: Jul 27, 2010
Posts: 8502

0 👍 / 0 👎


lukep6470 wrote
It's a B&M transmission with all their bits in it. Once you have a shift kit in an AOD the TV adjustment only impacts upshift points and kickdown, the transmission will never slip if you have it set too low. I currently have it set to upshift like a stock transmission under light throttle.


Actually, that depends on the valve body that's installed. Yours probably has a constant pressure modification.
I have an aftermarket VB in mine and the TV can still affect the down shifts. If your TV adjustment is too high, it will think you still have your foot on the gas and will not change down as easily.

lukep6470 wrote

Apparently downshift (Not kickdown) is up to the governor. It appears it is end user serviceable as it is in the tail section and you don't have to drop the pan or valvebody. I'm thinking of just buying a new one and slapping it in.



Yes the governor plays it's part for both up and down shifts. It sits on the output shaft and relies on centrifugal force to open and close it.
If you have changed your rear end gearing, then your output shaft spins a lot faster for a given vehicle speed. So for instance, at 40KPH, your output shaft might be spinning at the equivalent of 60KPH with standard gearing. So the governor may not "release" until lower vehicle speeds.

Just swapping the governor won't fix that though unless yours is faulty. If you pull your output shaft housing off to remove it, you should be able to shake it in your hands and hear the ball in the governor move. If it does, there's probably nothing wrong with it.


Last edited by hybrid on Thu Aug 20, 2015 11:21 am; edited 1 time in total

View user's profilePhoto Gallery
lukep6470
Mustang Star

Offline
Joined: Jan 06, 2014
Posts: 459
Location: Brisbane

0 👍 / 0 👎


I've got 3.55s which are a little higher than what an AOD is normally used to. Maybe I should go for the Transgo hi rev kit for the governor?


View user's profile
boofhead
Mustang King

Offline
Joined: Nov 02, 2010
Posts: 4501
Location: Brisbane

0 👍 / 0 👎


Was not most of the cars using this box around 3.73 rear?
Maybe that was later models.


I will someday think of something clever to say.

View user's profile
gbx78
Mustang King

Offline
Joined: Jun 29, 2011
Posts: 2931
Location: NSW

0 👍 / 0 👎


AOD.. my nemesis lol. I have 3.73 gears with my aod. And when I have my tv cable set right it appears to work well.. I look forward to going the later aod box one day. Shoulda got one when the dollar was good. Then again I drive like a grandma at the moment. 3k rpm makes a lot a noise which im not used to and either are my neighbours lol.

Since my oil pan change my tv pressure isnt right again so needs revisiting. Just as I had it perfect!! *shakes fist*


'You can never test fire too many times.' - Hybrid

'You can never have too many gauges' -
Boofhead

View user's profilePhoto Gallery
hybrid
Mustang King

Offline
Joined: Jul 27, 2010
Posts: 8502

0 👍 / 0 👎


Get the silverfox VB George Wink2


View user's profilePhoto Gallery
All times are Australia/Sydney
Go to page 1, 2, 3 Next


Jump to:

TopPostersToday
   Husky65 
 Posts: 
 6 

   66STNG 
 Posts: 
 3 

   Dwayne 
 Posts: 
 3 

   hybrid 
 Posts: 
 3 

   Nuts 
 Posts: 
 2 

   gbx78 
 Posts: 
 1 

LatestForumPosts
Last 10 Forum Messages

67 FG Resto Mod
Last post by Dwayne in Mustang Projects on Jan 21, 2018 15:52:06

Husky's 65 Restomod
Last post by Husky65 in Mustang Projects on Jan 21, 2018 11:37:12

66 roof bows
Last post by Nuts in General Tech Advice on Jan 21, 2018 08:10:04

Nuts Clearance Radiator, T5 Sold, Rack Sold
Last post by Nuts in Mustang Parts for Sale on Jan 19, 2018 12:43:29

Merts deceased estate sale
Last post by unilec5544 in Pre 1973 on Jan 18, 2018 20:29:41

Years in the making....
Last post by ACTstanglover in Mustang Projects on Jan 17, 2018 23:18:27

Dan Gurney passes away
Last post by ozbilt in Events on Jan 17, 2018 10:40:17

Canberra
Last post by Ausjacko in Events on Jan 16, 2018 17:32:16

Jacko's Project
Last post by Ausjacko in Other Projects on Jan 14, 2018 19:58:14

New Heart for Scarlet
Last post by soc123_au in Mustang Projects on Jan 12, 2018 22:29:21

SocialMedia

Like this page? Google +1 it!