I have an Chrysler crossfire base chassi. It is supposed to be converted to an srt-6 car.

Right now it is only the chassis that is basic. The rest have been switched out.
it has srt-6 devil wing. Srt seats. Dash is srt-6. Keys and immobilizer and ecu is from srt-6. Engine wiring is from srt-6. The only thing that is not changed is the solenoid box and RCM box. That is still from the base car.

And the transmission is also from base model. I will not change brakes differential and springs. I will leave it as the base model has it.

I need some help with getting the 6 speed manual to work with the ecu. Can I decode the ecu to manual transmission and just use the 6 gear transmission?
It can i use a stand alone megasqurt next to the ecu to get it to work?

I know I read many threads it can't be done. But I am sure if the ecu is set.to manual transmission it should not hassle I think!? Any ideas?

 

Yeah, buy an SRT-6 and use this car for parts.


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Davieboiii, if you where in the US I would suggest contacting Renntech with your question. In Europe someone like Kleemann may be able to definitively answer your question as to ECU tune.

 

i appriciate your efforts helping me! I dont want to put in alot time into the car if it is not doable.
but ive been told it should work if i connect a megasquirt togeather with ecu. Then the manual transmission will work.
i will try contacting kleeman. But i think more people is active here andcan helpme maybe.

right now the car does not even start up the engine. I put the key to on. And i can see in the RCM box that relay number 2 and 3 is activated. Think it is traction control and engine cobtrol relay. And when i turn it to ignition. Nothing more happends. And i release ignition and want to turn it again it dont work. I have to take key out and insert again to be able to turn to ignition position again.
Dont kblw why engine font get signal and run starter motor abd start engine?

 

Are you aware of the "NO START" problem and cure? There are bad solder joints on the board which will cause the no start.
Click here for details; RCM repair
Also with the age on these cars the relay contacts get burned and the individual relays can be replaced.
Good Luck.

 

YES i have already re soldered the 3 solder points. But there was no difference. I also resoldered the rest of the points on the left next to the 3 points. I have also cleaned the relay contacts. So no problem on the contacts. I have engaged them manually to see if they work.

here is a video of what happends when i try to start the car. Maybe you can tell whatncould be wrong.

https://gofile.io/?c=4J8tBO

thanks for all efforts!

 

do you have an automatic transmission there that you can plug into the harness on a trans jack and see if the car starts then?

 

no, unfortunatley I don't have it. I am also thinking if it is because it don't get a signal from the automatic transmission that it won't start?

but I am not sure if it should be able to start in "emergency mode" or not even when it is not hooked up to the AT tranny?

Or if it completley refuse to try to start when it feels it is missing. Any idea?

 

I will soon recieve a manual transmission ECU. Maybe i can fire up the engine with that one?
I will come back wit result about how it goes.

mean while I have a question. I wonder what the third relay is for on the BCM? The left and middle one is for the right and left windows. But I don't know what the right relay is for???

Anyone knows what it is for? ??


The black relay to the right???

 

Have no idea what the two on the far right is BUT that one closest to the middle of the circuit board looks MELTED...


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dont bouther avout thr melted thing. Just me that made some soldering. It works flawless. Hmm wobder what it could be used for

so little information about the crossfire online

 

There is the retarded mercedes 3 start on 15 rule.
After 3 no starts (turns over and trys to start for a sec) then turning the key back in does nothing, them have to unhook battery and wait to clear, then can tey again.
canndonthatv15 times then ecu goes into theft mode and frys its self

I have not heard much talk about in awhile.

 

it has nothing to do with the 3 start immobilizer.
mine dont even crank once.
I think the reason it won't start is because I have a manual transmission. The srt-6 ecu dont allow start signal If it dont find the automatic transmission I think.

Right now I would need an obd2 that works with the crossfire so I can reprogram the ECU to think it is an Manual transmission.

Anyone knows what obd2 tool I can buy for 2005 crossfire srt-6 engine?
to reprogram the ecu?

 

I don’t think an Obd2 tool can reprogram the ECU to think it’s a Manual Transmission. If that’s even possible. You would need something like a Starscan or a DRB3 which I still don’t think would work. I’m only going off of what I’ve read on here before about it.

 

Doesn’t Josh have expertise in SRTs with manual transmissions?