if you sent me one of the ecms i might be able to write flash software for it but it could take a year due to other projects
Type: Posts; User: steveo
if you sent me one of the ecms i might be able to write flash software for it but it could take a year due to other projects
.... of course i still play nintendo games and have never seen an x box. so if you want to play with old car computers, you are in good company. but lets not live a lie that some antique lean...
yeah definitely. keep in mind while GM was doing their early MAF systems, the Japanese were still using vane airflow meters in a lot of their cars. for their time they were very advanced. the...
'good enough'
that's the only reason one should use an antique ECM
or because you're poor like me, or like a challenge
if you desire real control, upgrade
the 1980s and early 1990s ecms...
that's where you're dead wrong
modern vehicles with variable cam timing controlled by neural networks and precise spark and injection control make vastly more power and achieve incredible...
on rigs like my big heavy jeep (no highway lean cruise) i just run open loop super lean with lots of timing in cruise range. great economy. just gotta read your plugs to see if you went too far and...
totally agree. also despite its reduced precision, the 7427 is capable of highway lean cruise on a budget. there's just no need to try to run two ecms here. if this were my build on a budget i...
i understand your plan and i know you could probably make it work BUT i disagree with your complicated approach.
my thoughts are if you have VSS, TPS, RPM, and MAP, and disable a lot of codes, you...
those old injectors with varnish contamination will probably have horribly uneven flow
any high impedance injector will be fine with the ecm, although you need to enter the new injector parameters...
a full fuel system redo with some modern injectors would probably be a good place to start
welcome. i love a good data collector.
its known by many names
the person writing the xdf chooses
injector flow rate could be it
nah i haven't. it looks cool. i might one day but right now my rules are i only tune in person especially for newer stuff im unfamiliar with
i've been trying to run a side business tuning, as there is nobody else in my town doing it, it has been easy to find customers. here are some interesting things i've learned with my first batch of...
some people change the injector constant instead of cyl volume to correct for the extra displacement. either way works
my brother had one of those cars a long time ago. they are pretty heavy for a rice rocket but definitely are a buildable platform with a drivetrain that'll handle it. i believe his gained around...
open the lid on that 7427 you bought and have a look
as a poor man i bought a cheap Chinese chip programmer
its tuned hundreds of chips now no problem
the sun can function as a free uv eraser in a pinch. it puts out tons of uv
tune your truck first
you should be able to open the ecm, pop the chip out, and put it in a chip reader if you wanted to pull the stock calibration off, then tune it with tunerpro, and write the...
oh and really old chips are this really cool thing called 'uv erase'
so if you have one of those chips you take the sticker off the 'uv window' and leave it hanging around on your window sill for a...
stop being sorry. i was in the place you are in once and so was everyone else here. that's why you're here.
burning a chip is super easy. you buy a prom programmer on ebay or whatever they are...
when i see leaks from a fresh engine on more than one surface it must be some fundamental issue
damaged or incorrect gasket(s)
mistorqued fasteners
machinist needs to be taken out back for...
if these are the parameters:
- throttle body type injection
- budget conscious
- good learning project
- fairly easy to tune
- guys on this forum help you
you want a modified OEM GM system...
you can adjust whatever you want. if you don't adjust the VE table or other airflow parameters what's going to happen is the ECM will just trim the fuel to be correct. edit: when i say correct, i...
let be frank even though my name is steve
don't be ridiculous.
stop saying "used to be" like someone can just up and lose a learned trade. that's not how it works
i know a bit about the...