So I replaced MAF and got ahold of another 4.8 truck and compared readings, MAF is good. Smoke test is good. Not a vacuum leak but maybe bad injetor? Or low Fuel pressure? (Or O2 SENlSORS are reading...
Type: Posts; User: agentruley
So I replaced MAF and got ahold of another 4.8 truck and compared readings, MAF is good. Smoke test is good. Not a vacuum leak but maybe bad injetor? Or low Fuel pressure? (Or O2 SENlSORS are reading...
Anyone else take a look at my logs and see if you can tell if it was a bad MAF. vacuum leak or bad injector....
Nah, I am going to exchange my current MAF for another one but I am still going to keep the 1BAR sd tune for now because it runs so darn good.
I will tune the VE when I figure out how, but now I...
And then compare that run to the cold/MAF tune run I did earlier this morning
Good advice man, but screw the MAF.
Engine is stock, and the changes were made by the last person?
I loaded the stock timing tables and VE tables and then set the computer to never go below 18...
4.8/t56 3.42 rear end 255/65/16 tires
I know the vehicle speed thing is off
The reason on why I am just so paranoid about this was because in the winter, I would start it up, and it would missfire...
1995 OBS chevrolet truck.
I have the MAF right at the throttle body after a 90 degree elbow.
You say there is no KR but I see on the histogram the red line that is KR and it is quite frequent of a...
So I did the smoke thing, no leaks?
But I did unplug or 'fail' the MAF and ran it on just the MAP, and for some odd reason, it seemed a bit more peppy. It keeps getting faster and faster.
This is a...
Ok I understand that. But what I dont understand is whats making it lean. Is it the tune thats making it lean?
Is it an injector or vacumm leak and if so how do I determine the difference in between...
Switched sensors on the sides and did another run.
I don't know what to say.
How come both the sensors read differently when the engine isnt even running?
Something is funky.
So here is another...
Ok. I understand. Could the o2 and FT readings also point to an injector that is always lean?
And so know do I need to replace said sensor?
or both?
I keep trying to add timing persay (but really keep disabling things that take away timing) and it keeps running better and better.
So I did a few more runs, here is a log and the change in the...
The engine just doesn't feel right.
When cold it misfires hard then after it warms up a little bit it magicly runs a lot better (that was a month ago)
Finally able to drive it down the street,...