Please help!!! Experienced swap guys only!!!!

[SwiftE30]

subscribed. i'm having this exact same problem. I have tried almost everything. Having a friend come over this weekend with another red label ECU ( i have red label 413 also right now) to see if mine is bad. If thats not the problem then im at the point where i am going to get a new harness and start over.

[mohamadr89]

***update**** now when we jump the fuel pump it's not getting a spark

[MattM]

go through and double check all sensors are hooked up properly! specifically cam position sensor, and crank position sensor

its easy to mix some of them up, i did it the first time i put my harness back on... but i just got a plume of white smoke when i turned the key...lulz

Also, make sure all your grounds and power wires are hooked up, its just as easy to miss a red wire in the battery box area...

[Schwarz325]

Are all the wires connected to the junction on the firewall? all the grounds including the chassis ground on the passenger side?

what did the 413 come out of? if it's out of a 325, i wonder if you need a chip burned for the m3 motor?

[Myster-E]

Are all the wires connected to the junction on the firewall? all the grounds including the chassis ground on the passenger side?

what did the 413 come out of? if it's out of a 325, i wonder if you need a chip burned for the m3 motor?

S50 and M50 chips are different, but an M50 chip will run an S50

[SwiftE30]

Are all the wires connected to the junction on the firewall? all the grounds including the chassis ground on the passenger side?

what did the 413 come out of? if it's out of a 325, i wonder if you need a chip burned for the m3 motor?

i was always under the impression that if it was a red label 413 it didnt need any sort of chip. Is this not true? What would the chip eliminate?

[Adrian_Visser]

There needs to be an EPROM chip in the DME. What you are confusing is whether or not it has to be a chip with EWS removed.

[SwiftE30]

So without this EPROM chip, an obd1 s52 would not run? Would it do anything once
All wiring is hooked up and adapter installed? Currently mine just cranks and cranks but nothing more.

[mohamadr89]

im going my car to somebody that will figure it out on monday. i will keep everybody updated on what the problem is

[Jafxod]

Are you sure your grounds/hot's are connected right? That will give you issues like this

[mohamadr89]

Are you sure your grounds/hot's are connected right? That will give you issues like this

he checked everything and still nothing. today should be the day i find out for sure.

[SwiftE30]

yes! Please let us know. I'm dying to find out. good luck

[Adrian_Visser]

So without this EPROM chip, an obd1 s52 would not run? Would it do anything once
All wiring is hooked up and adapter installed? Currently mine just cranks and cranks but nothing more.

Crack open your DME then and see if someone removed the chip.

[328ijunkie]

It would crank forever but yeah never fire. Crank position sensor also causes this symptom.

[SwiftE30]

the DME has never been opened. and the eprom chip is still there. all the sensors, ecu and harness came from the same car. i jusr read this thread, and post #78 sounds like it might solve my problem, but they are talking about a pre-88 e30. http://www.r3vlimited.com/board/show...36#post1216936

I'm thinking i would like to pick up a new cam and crank sensor, and ecu, then eliminate each one individually to see if one or the other is bad.