having trouble with my omni

[BadAssPerformance]

cool

[Tim Kish]

As JT said, I had a similar sounding issue at about the same RPM. Acted like a rev limiter was set. When we disabled the cam signal after engine start the problem went away and I've run the car for 3 years now this way turning 9800rpm with no issues

[BadAssPerformance]

Cool, thanks for chiming in Bro!

[turbovanman²]

I've run the car for 3 years now this way turning 9800rpm with no issues

Holy crap, Whats your setup?

[BadAssPerformance]

Tim runs an all motor neon in SS/GS

[turbovanman²]

Way cool,

Times, setup?

[Ubmbass]

well, sounds like it is about what I am going to run.. Plan on spinning 9700.. but that's besides the point now. I need to get this thing running right.

I tried the cam thing and it didn't do it... I found some wires were wrong. I fixed them.. now it won't run again. HAHA>.. I had the wires going to the dis-2 were wrong. I fixed them. also, the wires going to the coil pack were wrong. It was wired with the power going to the 1-4 and the 1-4 trigger was going to the power... I don't even know how it was running. Now I can't get it to run.. it's really starting to piss me off.. I am at a loss. It starts, then dies,. any ideas would be greatly appreciated

[Tim Kish]

Way cool,

Times, setup?

Not to hijack too much - 2.0L DOHC (Darrell Cox built), lots of cam, lots of compression, aforementioned lots of RPM and custom automatic trans. Best time: 12.880 @ 108.44

To your issue: Coil pack wiring - factory supplies common power with ground outputs from the ECU to each side of the coil. MSD/Crane outputs are positive so the center common lead is ground.

Crane wiring diagram
http://www.cranecams.com/pdf/90006500c.pdf

[Ubmbass]

SO, you are sure the MSD DIS-2 pulses the positive? I have it wired completley different than that. CRAP!! I hope that is the problem! If it is, I will have to just kiss you tim!!! Thanks

[Tim Kish]

You ever get your car fixed?

[BadAssPerformance]

Last I talked to Corby he got it running but needed to tune it... and he did trick the cam sensor similarly to yours.

[Ubmbass]

Yeah, I got it running after a lot of playing around with the fuel map.. those big injectors don't like to idle very well.. Now I have it torn apart to fix the intake so it doesn't get too close to the timing belt and still be able to use the stock tesioner.

YOu know, it still doesn't run "right" it's really hard to start, idk if it's the e85 and it being as cold as it is, or what.. I'll figure it out after I get it running right again. THanks for all the help guys!

[BadAssPerformance]

I've played with the VE and timing tables in the idle range to help starting... there is also an air temp vs. fuel enrichment table.

[Ubmbass]

Yeah, I was looking at that.. You know, my air temp sensor doesn't work properly. It shows way colder than it could possibly be. so does my coolant temp sensor. I used the same coolant temp sensor as before in the van that seemed to work perfectly fine, but I used a stock neon air temp sensor and it reads way too cold.. like 25 degrees when it's 40 outside.. IDK it just seems like it would directly affect the tuning of the car wouldnt it?

[BadAssPerformance]

Yes if the different sensor has a different voltage range it will read differently and thus affect the cal. I thought they were kinda standardized tho?

[Ubmbass]

same here. but we'll see

[turbo2point2]

Not sure which sensors you have in there, but I know when I plugged in a TD sensor on my car the numbers were off a bit. My system calls for GM air temp and coolant temp. sensors only. Just a thought.

[Ubmbass]

I'll see what I can find out about my sensors

[BadAssPerformance]

True, FAST uses all GM sensors for the most part... I am using a 2.2L TPS tho.

[Nemesismachine]

Did you build this car with all the gofast goodies at the same time? Buddy of mine works at a shop near my house, and he had a kid in an evo buy a LOT of parts and put them all on at the same time, and his car wouldn't start. Without knowing how the car will act with all the aftermarket stuff on, it was hard to troubleshoot. He ended up having to basically rebuild the engine with stock parts, then swap out for the performance ones one at a time.

Maybe not your issue, just chiming in.