I swapped out my m20b27 for a m20b25. I have everything hooked up(i think wiring is correct but not 100% sure) and there is no crank. What should i check first and if anyone has pictures of how the wiring should be that would be appreciated.
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Did you switch the wiring harness, ecu, cps etc to the motronic 1.3?
318iS Track Rat :nice: www.drive4corners.com
'86 325iX 3.1 Stroker Turbo '86 S38B36 325
No one makes this car anymore. The government won't allow them, normal people won't buy them. So it's up to us: the freaks, the weirdos, the informed. To buy them, to appreciate them, and most importantly, to drive them. -
Yes i switched all of it and the motor was from an 87 so it was motronic 1.1Comment
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does the starter click? Is there fuel? Is there spark? Is the cps good? is the CID sensor installed on the plug wires (#6)318iS Track Rat :nice: www.drive4corners.com
'86 325iX 3.1 Stroker Turbo '86 S38B36 325
No one makes this car anymore. The government won't allow them, normal people won't buy them. So it's up to us: the freaks, the weirdos, the informed. To buy them, to appreciate them, and most importantly, to drive them.Comment
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did you plug in the 3 wire connector that comes off the old eta wire harness? its like black green and white or something like that, in a off-white 3-pin molex connector.
Derek
DedericMSComment
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Does the engine crank (.i.e turn over) but not fire, or does it not crank at all?The car makes it possible, but the driver makes it happen.
Jim Levie, Huntsville, ALComment
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The engine does not crank at all. I think i messed up with the wiring on the starterComment
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Also something people tend to forget. Did you connect the main engine ground?Comment
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If you used an engine harness made after 9/87 it will have two small wires in the vicinity of the starter solenoid. One is for the unloader switch in late starters and the other controls the solenoid. If you used the ETA starter it will only have one small lug on the solenoid and if the wrong wire is connected the starter won't operate. And as MR 325 said, make sure the engine to chassis ground strap is connected.The car makes it possible, but the driver makes it happen.
Jim Levie, Huntsville, ALComment
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make sure the 3 prong plug next to the DME is connected if its a early (87) I harness. Like posted above, if your running a late model harness with the eta started you will have a un used wire "unloader" Make sure your harness is connected correctly. Did you ground the harness to the battery tray?
I have a e to i set up and using a 90 harness. Started up just fine once i figured out the stater issue.
But like I said, If your using a 87 early I harness its all PNP and should start the 1st try. Did you plug the CPS into the other matching plug?
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Yes i have all my grounds connected.
e30trooper-Those are the exact 3 wires i have for the starter. I see the red and back wire hook up to the same post. Now where does the black/yellow hook up to? On my starter i only have two postsComment
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**UPDATE**
I found out where the starter wires go to but now when i turn the key to acc i dont hear the ecu come on nor the icv. Is it possible i could have fried something if i did not wire the starter correctly?Comment
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i was just about to tell you when i pulled my motor my starter wires were on the wrong post.
I doubt you fried anything, i just moved my hot wire to the correct post and it crankedMR2/Camaro Strut DIY
http://www.3seriestech.com/viewforum.php?f=22Comment
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Okay it is now cranking and sounds like it wants to start but i am not hearing the icv when the key is turned to acc and i believe this is the reason why its not starting.Comment
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