Just got my AutoProm!

[EagleMark]

Spark and VE1 table, then datalog and see where your at.

[Xenon]

Ok, will do.

Also, should I be using a closed loop idle bin, or does it matter?

[EagleMark]

Unless it's a big cam engine? I always start with ASDU for auto.

[Xenon]

As far as I know it's just the stock cam... I will make an adsu to work with then. Thanks.

Went out to do a datalog, and the plug I had in the air injection port on the manifold blew out... Darndest thing I've ever seen... So had to fix that, now I gotta get stuff together for work tomorrow. Hopefully one evening this week, or next weekend for sure.

Really appreciate you working with me!

Question: if I get on it hard, it doesn't seem like its quite running like it could, not the power I'd expect, until ~2800-3000 rpm when it takes off like a bat outta hell. What could make it do this?

Thanks!

[EagleMark]

Not tuned yet? You have PE off for data logging...

[Xenon]

Forgot about no PE.

[Xenon]

Been almost two months since I posted... time flies.

Got a chance to take the truck out today, and did a datalog. Looks like I'm still a little rich?

.bin and datalog are attatched. Im using the spark and fuel tables EagleMark made me a few posts back.

Another question: the IAC doesnt "park" like it should... if you try to start it on a cold day, it coughs and sputters, trying to maintain 500 rpm idle and always dies. I thought the IAC was bad, replaced it with a known good one. It was of course parked when i took it out, when I put it in the truck started up and then dropped back down to 500rpm and died... I had to wedge a screwdriver on the pedal to keep it alive on that cold day. Dont know whats causing this, and dont have alot to go on as I dont drive it hardly at all lately.

Thanks for everything guys.

[EagleMark]

Do you have EGR hooked up?

EDIT: You didin't leave much idle at end of log, always leave a minute in gear and a minute in park at end. But from what I can see your throttle blades are not open enough. Idle is OK? But IAC count is 89! Means most air is coming through IAC and not mixing air with fuel over throttle blades. Turn the screw in 1/2 turn. Then turn key on and check TPS voltage, should be close to .54, may have to grind out some of the holes so it twists.

[Xenon]

I don't have any egr... I have the thing under the hood with the electrical connector, but I blocked the vacuum lines from it. My manifold has no provisions for egr.

Ill open up the throttle blades and leave some idle time at the end of the log. Just out of curiosity, what is the purpose of letting it idle at the end of the log?


thanks!!!

[EagleMark]

EGR is still on in the bin you posted. That would be the varying of BLM in data.

Opening throttle blades should help idle BLM? SO will raising idle a little.

Idle at end of log is something I developed after have all sorts of issues trying to dial in idle. TBI is a wet intake, this is why it's important to get throttle blades open enough to let max amount of air to mix with fuel being injected above throttle blades, then flows through intake. TBI is also heated intake. So hard to use data if it's not fully warmed up engine and intake. If you judge your idle and data and end of log and make adjustments from that ? It just works all the time!

I raised your idle, turned off EGR in this bin. Learn how to use the compare and difference tool so you can see what I did. Next data should be better or at least consistent. HTH!

[Xenon]

Turned the screw in 1/2 turn and the tps voltage showed .66. No noticable difference and the iac counts were still right aroud 90... Don't know what that means.

Edit: thanks for your help! I will datalog that bin tomorrow and post the results.

[EagleMark]

.66 is fine. Like I said, end of log and see what happens.

[EagleMark]

Wait a minute? .66 is what you had, if you turned screw in 1/2 turn voltage should have gone up? Is the screw even hitting the stop?

[Xenon]

Well I can't say... I just turned it up then checked the voltage. I will look at it tomorrow and see...

[Xenon]

Well if it was touching it was barely at all... I turned it up till i could see the throttle move some, now the tps reads .74

Going to datalog now.

Thanks