Microsqirt fox won't rev up

G

Grisortor

Member

Oct 11, 2019

13

2

13

Utah

Apr 2, 2020

#1

• Apr 2, 2020

• #1

Hey everyone I finally finished up the wiring for the micro squirt in my 91 lx and got it running. It idles smooth and will rev up to about 4 grand before if falls on its face and bogs out. I haven't had a chance to calibrate the tps sensor yet because my serial adapter hasn't gotten to the house yet.

Will a non calibrated tps cause this sort of problem? If not does anyone have any ideas?

I would appreciate any help yall can give. Thanks in advance.

 

G

Grisortor

Member

Oct 11, 2019

13

2

13

Utah

Apr 2, 2020

#2

• Apr 2, 2020

• #2

Suppose I should add that the engine is bone stock out of an 88-90 gt

 

a91what

SendMeUrDataLog

10 Year Member

Apr 6, 2011

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Apr 2, 2020

#3

• Apr 2, 2020

• #3

Your lucky the car even runs if you have not done any tuning on it yet.
Wait for the cable to come in, then begin tuning.
What wideband do you have installed?

 

G

Grisortor

Member

Oct 11, 2019

13

2

13

Utah

Apr 2, 2020

#4

• Apr 2, 2020

• #4

As of right now it has the stock heated o2 sensors in it. I planned to pick one up with my next check but havent really looked into them as of yet. Is there a preferred brand anyone could recommend?

 

a91what

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Apr 2, 2020

#5

• Apr 2, 2020

• #5

Spartan2 from 14point7.com

you wont find a better solution for the money. I like them so much i run 2 of them on my ms3pro car

 

G

Grisortor

Member

Oct 11, 2019

13

2

13

Utah

Apr 2, 2020

#6

• Apr 2, 2020

• #6

Just placed the order thanks for the recommendation.

Just out of curiosity, this is the first project I've had that wasn't a carburated chevy truck, what kind of pit did I just dig myself?

 

a91what

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10 Year Member

Apr 6, 2011

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Apr 2, 2020

#7

• Apr 2, 2020

• #7

You will be ok, I tune one of these systems a week and we have a great forum to here. Worste case you use my services page.

 

G

Grisortor

Member

Oct 11, 2019

13

2

13

Utah

Apr 4, 2020

#8

• Apr 4, 2020

• #8

So I got my usb to serial adapter in. Drivers are installed on my windows 10 laptop. I have verified that its communicating over port 7 but tunerstudio wont talk to the microsquirt. As far as I can tell everything is set up correctly with proper power and ground but I cant even start a new project.

Anyone have any ideas on how to get the 2 to talk?

 

a91what

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Apr 6, 2011

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Apr 4, 2020

#9

• Apr 4, 2020

• #9

Ok when you are trying to communicate you do have the key forward yes?

 

G

Grisortor

Member

Oct 11, 2019

13

2

13

Utah

Apr 4, 2020

#10

• Apr 4, 2020

• #10

I actually just figured it out. Tuner studio was trying to communicate with my printer. So I had to reset the program and shut off the printer. All the sensors are calibrated now so I'm just waiting on the wide band to show up and I need to get my timing light working to find base timing. It already runs a lot better but it goes extremely lean and chokes itself out at about 5k.

 

Reactions: Scrapla347

Scrapla347

Active Member

Apr 23, 2020

202

67

38

Florida

Oct 16, 2020

#11

• Oct 16, 2020

• #11

Does the Micro Squirt eliminate the MAF and turn it into speed density?

 

HemiRick

I'd be looking at jacking under the house

Jun 28, 2020

723

272

73

Memphis TN

Oct 16, 2020

#12

• Oct 16, 2020

• #12

It does, or it can use the MAF too....

 

a91what

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Oct 17, 2020

#13

• Oct 17, 2020

• #13

Or you can tune it alpha n (throttle position) or any combination of algorithms you want to use. It's very flexible