Why not the Haltech like Mike is running and soon to be Brian?

i think every person in the world would love to see this car on stock ecu and SD. lol

I've heard great things from my tuner Mark in England about Vipec. Also Autronic just released 4G63 specific knock control in their latest SM4 plug in board. Anyway there are a ton of options and if you do switch, I'm sure you'll make a great choice.

Dave knows the Haltech can be in his hands if he wants to try it.. I have 6 of them in stock, 2 of which are pnp for evo 8..

Mike

I know what it does and the proof is in the pictures above. It's called 'AnotherEngineMishap'.
You guys are lucky in the EVO world where on other platfoms injector/ignition drivers are known to fail frequently and on a 1000+hp application the results can be very costly.
The cam sensor is used for determining the TDC position in the cycle. The crank sensor is for the actual rpm and position of the crank. I've asked if the new software/firmware would address the previous problems(earlier syncing etc.) it had when applied to the EVO platform and the answer I got was simply no.

I think something very similar happened to John's car a few times. It's been a while and my memory is fuzzy on what exactly occurred. But things would go boom, big holes out the back side of the head would happen, and the log showed crazy RPM spikes. It think it's the AEM as well and the chain of events doesn't sound specific to the EVO cam sensor. Give John a call, he could fill ya in better than I just did.

Erratic rpm signal is normally a noise/interference issue or problems with the crank sensor hardware.
Dave are you still using the factory crank trigger disc?

I came here for an update and noticed I missed all of page 4, sorry, not sure how that happened.

As of today the car is running again. Ted does customer head porting after hours and he did mine while on the clock at the shop over the course of a few days. This is the first real fresh head that I've got to run, maybe ever. I bought a new core and we have tried a few new things on the head. I should have learned my lesson over the winter throwing a bunch of new things at the car and just looking at the dyno sheets but I did not I guess.

I've gone hog wild this time and much is changed, I don't see it backfiring on me this time though, or alteast I hope it doesn't!

Let me answer some questions first. Crispeed, the car is back on the stock trigger wheel. I ran the 12 tooth last year and this year. I've had it in the back of my mind to try the stock ECU or something else and anything else is going to require the stock crank trigger, so it was put back in about 2 months ago. I also mentioned this problem to AEM, again today actually, and they are going to get back to me. They usually do so hopefully something will happen for the good.

Anyway, we fired the car up finally today. New radiator, new cam sensor, new injectors, new cylinder head and new cylinder head work. It sounds outstanding and will be on the dyno in the next day or two. Right now the car is still running the AEM EMS. A change is coming though.

My goals have changed in the last week. I want to run 8's but now it's more than just "Yeah, I'd like the car to go 8's." It's much more nasty than that now. Now it, "This MF'er better run in the 8's."

Everyone has their version of a street car and what an "EVO" is. I want MY version of what a street car and an EVO is. That is a car with headlights, mirrors, wipers, exhaust, big Brembo brakes, radio, speakers, crash beams, air bags, stock glass and stock body panels.

I have put my stock hood on the car (that's been on most of this year) and today we put my stock trunk back on it. I will be running the car on slicks to get it in the 8's and then immediately after we will be switching to street tires where my next goal is to run the car into the 8's on a street tire. If and when the car goes 8's I will be selling off my slicks/wheels.

The weather this time of year is improving on a daily basis, tonight would be perfect for running the car. I'm hoping we can run Friday but there is a lot to do between now and then, it is my main goal though.

I have an additional goal of making the biggest and fattest HP/TQ curve we have ever seen on our dyno with the car. I've messed around long enough and it's time to stop with the sissy crap and just get this over with.

The next few days will be interesting, I sure hope my luck turns around, it's been an *** kicker of a year so far but I truly believe that NOW things are ready to come together.

My goals have changed in the last week. I want to run 8's but now it's more than just "Yeah, I'd like the car to go 8's." It's much more nasty than that now. Now it, "This MF'er better run in the 8's."

dave u have a great man

Hell I just want to run consistant 7's.... in the 1/8 mile that is!

Good to hear you are ready to go back to the track with that monster and reach your goals.

Sounds like my Issue. I've been through 4 cam sensors already, and i'm worried something serious like this might happen to my car if another goes bad. Any suggestions on preventing them? I have an ETS turbo kit with equal length header, which is only a few inches away from the Cam position sensor. I also have the Buschur Racing cam sensor cover/shield to "prevent" this but i've still had one go bad, even with the shield.

Suggestions? lol

Sorry i'm jumping in late to this but i'll still voice my opinion..

The Ecu needs the crank trigger to determine crank position and rpm. It uses this to calculate timing. All ignition timing calculations are based from your crank sensor. Now if you had a distributor it would be the only sensor needed to run your car. With multi coil engines and or sequential injection the ecu will need to know cylinder 1 tdc so it can base it's ign sequence according and also injector sequence. SO every time it sees tdc # 1 the ecu starts the sequence 1,3,4,2. And it just keeps going every time it sees it..

Now if the engine lost it's cam signal the ecu wouldn't know which coil to fire and it should stop firing all together if it doesn't know which cyl to fire! Most Ecu's do this..

Other ecu's only need to see the cam signal once during cranking and will know the correct tdc of the engine while it's running so if you ever lost the cam signal it wouldn't matter as long as you didn't shut off the engine..

AEM though is different story.. LOL..
Hence the nickname "Another Exploded Motor"...

RPM should not be jumping from 5k to 10k etc unless there's something going on with your crank trigger or the ecu is picking up noise somewhere. The AEM software is so problematic who knows what was really going on in your motor Dave. But we all know if your head was torched as bad as you say it was there was a major issue in that engine. Most definitely way to advanced.

At this point I don't think the problem is heat on the sensor, I think it is AEM related to be honest. Going to try to put my "bad" sensor in another car and see if it runs correctly.

Thank god - its time to stop beating around the bush !

This has been like dating a girl who only lets you finger her for a few months and its really time to end the games and give her the meat. I guess in this case finding a new girl is not an option so your only choice is to intensify your efforts.

yes sir...

This reminds me of a friend of mine who mysteriously began losing engines and
couldn't figure out why. Switched ecu's and hasn't lost an engine since....