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What injectors were you running before these and did you have a similar problem? What OS are you running and are you using fuel trims or speed density? I have problems with my injectors at times,...

I have an LSX455 with a MagnaCharger in my 1998 C5 with 1999 PCM. Right now I'm using an EFILive custom OS with extended tables for high MAP values (i.e. no fuel trims available in this tune).
...

If you could post a log file and your tune file, that would help!

thanks, bc

Hello,

I'm considering an alky kit for my maggie. Currently my IATs are 200 degrees F. Can someone post a log of IATs in and out of boost so I can get a feel for what kind of intake air...

Guys,

Is there a way to determine what gear you are in with a PID for a 1998 C5 Corvette with a 6-speed manual transmission?

Thanks,
Bobby

Hi Swingtan. You mentioned using a switch to detect 4th gear... I asked in a seperate post a similar question (should have read before posting ... oh well). Anyway, what switch do you have in...

I have a 99 Corvette with Custom OS 02020005. My problem is that I get some knock when in boost but typically only in 5th gear or higher. Is there a way to pull more timing out based upon what Gear...

Hanging idle is FIXED! I made some tweaks to the Throttle Cracker as suggested and that resolved it.
:cheers:

My next problem was a wildly oscillating RPM from 400-1200. I was looking at my...

I have a 1998 C5 Vette. Actually now that you mentioned it, my speedo VSS pid shows the same thing as the dash gauge (i.e. reported speed is lagging my actual speed). So in that context, I suppose...

I hope you say sensor because no-way am i brave enough to take the dash apart!

Grounds for the sensors or the gauges?

Thanks guys. I'll do some experimenting and see what works!
:cheers:

Bobby

PS: [Entertainment at my expense...] Actually I was just trying to do some experimenting. Looked like about...

Time to pick your brains again... :) Recently my idle has begun to "hang." Here's the scenario... I pull up to a red light, step on the clutch, pull out of gear, and the RPM's get stuck at 1600 on...

I knew there was a genious lurking out there somewhere... :) Thanks for the suggestion. I'll give it a shot this weekend!

Bobby

Thanks guys

Here are a couple of close ups if that helps...

5040
5039

Attached is a picture of my fuel regulator. It appears that there is a vacuum line attached to the regulator. It is routed to the air intake path directly in front of the throttle body (vacuum line...

I'm in Houston, so baro is 101 kpa as we are at Sea Level. I will take some pics when I get home and post them. Thanks again for the advice.

Thank you. I have a 1998 C5 with a '99 operating system. My shop advised that it has a manifold referenced regulator. So... based on your feedback, I should probably set the entire table to 1...

I have a dumb question... Given that a stock C5's fuel pressure regulator is manifold pressure/vacuum referenced, why do we need the injector flow rate table to be anything other than a constant...

I'm also using custom OS5 (02020005). I was at the Texas Mile this weekend and had my final high spark table set at 26* and commanded a 3* drop from the Boost Timing Table. I was expecting to get...

Hello, I have an LSX 455 with a Magnacharger running 9lbs of boost. About 800 hp at the flywheel. I'm looking for suggestions on a fuel pump and regulator that will support my current configuration...

This is helpful info. So it seems that for "experimentation" purposes, it might be easiest to start with B4002. The voltage profile is the stock profile from a standard 2002 Corvette tune which is...

Any suggestions where to start ... When my car is cold it starts like a champ and runs at the commanded AFR at idle and above and continues to do so even when at operating temp. If I drive the car...

If I allow my voltage to drop below 12 volts [i.e. electric water pump running after engine turned off to reduce heat soak], I find that I have a hard time getting the car started again due to very...