NEWBIE HELP REQUIRED

A forum for discussing topics of particular interest to those running MegaSquirt in Australia and New Zealand, including parts sources, group buys, etc.
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TA23
MegaSquirt Newbie
Posts: 3
Joined: Tue Sep 10, 2013 5:59 pm

NEWBIE HELP REQUIRED

Post by TA23 »

Hello all,

I have just fitted an EFI 2TG engine ( with MegaSquirt II ) to a 76 Model Toyota Celica.
The engine and ECU module were working together prior to changeover.

The engine will crank but not start.
Is there a common mistake that new folks make that stops the injectors opening?

things I have checked:
all sensors seem to be working correctly on Tunerstudio
fuel at pressure in the fuel rail
spark at the sparkplugs
injectors have power, and work in "Test" mode

I have attached a log file of the engine cranking.
is there any obvious problems to the experienced eye?

thanks in advance Steve
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wagon
Helpful Squirter
Posts: 92
Joined: Sun Jul 17, 2005 4:10 am
Location: Toowoomba, QLD, Australia

Re: NEWBIE HELP REQUIRED

Post by wagon »

Hello Steve,

Are the injectors getting power whilst the motor is being cranked? Have a look-see, let us know!
1984 Ford Falcon 250ci inline 6 MS'd of course!

Now improved the way Ford should have built it with a 4speed automatic.

Also with 3.45 LSD for added goodness.

If you are hitting your head up against a wall it always feels better when you stop.
TA23
MegaSquirt Newbie
Posts: 3
Joined: Tue Sep 10, 2013 5:59 pm

Re: NEWBIE HELP REQUIRED

Post by TA23 »

** should I check the voltage at the injectors while cranking the engine?

I have a fusebox supplying the injectors, via a relay (energised via the ignition ON switch) from the battery.
wagon
Helpful Squirter
Posts: 92
Joined: Sun Jul 17, 2005 4:10 am
Location: Toowoomba, QLD, Australia

Re: NEWBIE HELP REQUIRED

Post by wagon »

TA23 wrote:** should I check the voltage at the injectors while cranking the engine?

I have a fusebox supplying the injectors, via a relay (energised via the ignition ON switch) from the battery.
Yes, check the voltage at the injectors at crank. Use an indicator lamp or something as a load, too.
1984 Ford Falcon 250ci inline 6 MS'd of course!

Now improved the way Ford should have built it with a 4speed automatic.

Also with 3.45 LSD for added goodness.

If you are hitting your head up against a wall it always feels better when you stop.
TA23
MegaSquirt Newbie
Posts: 3
Joined: Tue Sep 10, 2013 5:59 pm

Re: NEWBIE HELP REQUIRED

Post by TA23 »

Yes I have voltage at the injectors while cranking.
DOH! Found a problem.
The fuel pump is still from the original carby setup and only delivers 3psi, looks like we need another fuel pump that delivers HIGHER pressure.
wagon
Helpful Squirter
Posts: 92
Joined: Sun Jul 17, 2005 4:10 am
Location: Toowoomba, QLD, Australia

Re: NEWBIE HELP REQUIRED

Post by wagon »

Ah ha! It sounds like you're getting there now.
1984 Ford Falcon 250ci inline 6 MS'd of course!

Now improved the way Ford should have built it with a 4speed automatic.

Also with 3.45 LSD for added goodness.

If you are hitting your head up against a wall it always feels better when you stop.
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