DIYPNP on a 22RE, Anyone?
11-07-2009, 07:42 PM
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Location: Pollock Pines, CA
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Well I bit the bullet and did it.
Spent a couple days this week building a DIYPNP kit for my 22re pickup. I will post a write up soon, probably within a couple weeks. I took lots of pics and will try to make a tutorial out of it.
It starts (easily!), it idles, it runs, but not optimally as I have really just used a basic generated VE table at this point and haven't got into the finer points of tuning. I also think some of my config/settings for various things is off a little (anyone know the stock 89 22re injector characteristics? 190 cc/min... but, 1ms on time? 0.2 ms/v battery voltage correction? 75% pulse width mod. current limit? 25.6ms PWM time threshold? 66us PWM period? These are all of the settings I'm using right now but have ZERO idea if they are appropriate).
Something I have found is that it idles like death if I use the calculated fuel requirement and VE for a 2400cc 4 cyl with 190cc injectors & making the stock power figures at respective engine speeds...
More to come!
Spent a couple days this week building a DIYPNP kit for my 22re pickup. I will post a write up soon, probably within a couple weeks. I took lots of pics and will try to make a tutorial out of it.
It starts (easily!), it idles, it runs, but not optimally as I have really just used a basic generated VE table at this point and haven't got into the finer points of tuning. I also think some of my config/settings for various things is off a little (anyone know the stock 89 22re injector characteristics? 190 cc/min... but, 1ms on time? 0.2 ms/v battery voltage correction? 75% pulse width mod. current limit? 25.6ms PWM time threshold? 66us PWM period? These are all of the settings I'm using right now but have ZERO idea if they are appropriate).
Something I have found is that it idles like death if I use the calculated fuel requirement and VE for a 2400cc 4 cyl with 190cc injectors & making the stock power figures at respective engine speeds...
More to come!
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