New injectors and tach don't work, old injectors at 164%duty cycle?
#1
New injectors and tach don't work, old injectors at 164%duty cycle?
So, here's my setup:
1.6 with the standard greddy kit
front mount intercooler
mspnp
AFM delete
supra 305's
FM dual feed rail
stock fuel system
Here's the problem I'm having with this setup. I took a datalog today and at ~5.5 psi, I'm at 89.9 dutycycle1 and 164.3 dutycycle2. What is dutycycle2?
Anyways, on to the more pressing matters. I recently bought a set of 550 low-impedance injectors with some 10ohm/10watt resistors that I soldered inline. Anyways, I tried jacking around with the opening pulse width that I adjusted via megasquirt's instructions. I couldn't get it to start at all.
Long story short, I putz'd around for about an hour and a half and didn't get anywhere except pissing off the neighbors. I put the 305's back in and loaded up the old map and voila, it started right up ... but the tach didn't work. Any ideas on that?
Thanks for the help!
1.6 with the standard greddy kit
front mount intercooler
mspnp
AFM delete
supra 305's
FM dual feed rail
stock fuel system
Here's the problem I'm having with this setup. I took a datalog today and at ~5.5 psi, I'm at 89.9 dutycycle1 and 164.3 dutycycle2. What is dutycycle2?
Anyways, on to the more pressing matters. I recently bought a set of 550 low-impedance injectors with some 10ohm/10watt resistors that I soldered inline. Anyways, I tried jacking around with the opening pulse width that I adjusted via megasquirt's instructions. I couldn't get it to start at all.
Long story short, I putz'd around for about an hour and a half and didn't get anywhere except pissing off the neighbors. I put the 305's back in and loaded up the old map and voila, it started right up ... but the tach didn't work. Any ideas on that?
Thanks for the help!
#4
Why is everyone frying ignitors? I have a switch i installed between MS and my coils. When I want to reflash the entire map i just hit the switch, flash, turn the switch back on and go for it. The '99 coils are a real PITA to disconnect because they're right against the firewall and the connectors might as well be glued on they're so tight. Atleast on mine.
#9
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MS gets tach signal from CAS
Tach on dash gets tach signal from ignitor
sounds like your putzing fried the tach output on the ignitor, and it's likely spark output failure will follow
can't tell you why the car didn't start. but if you didn't get the req fuel ballparked, then the cranking pw's aren't relevant.
Tach on dash gets tach signal from ignitor
sounds like your putzing fried the tach output on the ignitor, and it's likely spark output failure will follow
can't tell you why the car didn't start. but if you didn't get the req fuel ballparked, then the cranking pw's aren't relevant.
#10
Sounds good. I'll go get an igniter and see if it fixes the tach issue.
As far as the req fuel and cranking pw's, I set the req fuel to 4.9 (1600cc, 4x550cc injectors) and the cranking pw's to what the MSPnP guide said (original pw - injector opening time * new/old flow + opening time). Perhaps another go at the cranking pw's again will yield new results. In fact, I'll go send out the injectors to make sure they're working fine, then put them back in.
As far as the req fuel and cranking pw's, I set the req fuel to 4.9 (1600cc, 4x550cc injectors) and the cranking pw's to what the MSPnP guide said (original pw - injector opening time * new/old flow + opening time). Perhaps another go at the cranking pw's again will yield new results. In fact, I'll go send out the injectors to make sure they're working fine, then put them back in.
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