90 EF ZC swap fried the ecu got new want run!

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Old Mar 15, 2016 | 09:46 PM
  #1  
Charles Dunn's Avatar
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Default 90 EF ZC swap fried the ecu got new want run!

I bought this car running just needed some clean up and the proper dizzy. she has a shoty wiring job but it was working until something grounded out and fried my ECU. I have got 2 more since then they both work but still nothing. All fuses good, relay good i have 2 of those. The relay is not clicking a 2nd time meaning my rail is working but the pump is not priming or anything for that matter( it does work i jumped it). The CEL is on was not before and im also not getting spark. The car was sitting in idle when my friend put her feeet down by the ecu something grounded and my car just shut off. I have a new/used working ecu P06 installed and i cleaned up the jumper harness but she still is turning over but no spark and no fuel( I have a fuel pressure guage installed on the filter) and still showing CEL? DEAR GOD SOMEONE HELP ME PLEASE!!!!!! 5 WEEKS OF THIS ****!!!!!!!
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Old Mar 16, 2016 | 04:59 AM
  #2  
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Default Re: 90 EF ZC swap fried the ecu got new want run!

Originally Posted by Charles Dunn
I bought this car running just needed some clean up and the proper dizzy. she has a shoty wiring job but it was working until something grounded out and fried my ECU. I have got 2 more since then they both work but still nothing. All fuses good, relay good i have 2 of those. The relay is not clicking a 2nd time meaning my rail is working but the pump is not priming or anything for that matter( it does work i jumped it). The CEL is on was not before and im also not getting spark. The car was sitting in idle when my friend put her feeet down by the ecu something grounded and my car just shut off. I have a new/used working ecu P06 installed and i cleaned up the jumper harness but she still is turning over but no spark and no fuel( I have a fuel pressure guage installed on the filter) and still showing CEL? DEAR GOD SOMEONE HELP ME PLEASE!!!!!! 5 WEEKS OF THIS ****!!!!!!!
- Car running
- Needs new distributor
- Bad wiring job
- Fried ECU
- Relay good
- Relay not clicking 2nd time
- Fuel pump not priming
- CEL on
- No spark
- No fuel

So it's a swap, with a bad wiring job? And the CEL is on, and it needs a new distributor? No spark or fuel? What exactly do you need help with? Sounds like a real gem.
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Old Mar 16, 2016 | 10:07 AM
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Default Re: 90 EF ZC swap fried the ecu got new want run!

If you're throwing a check engine light then it would be wise to disclose what the code is. Also it would be wise to disclose which specific ZC you have and which specific ECU was fried.
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Old Mar 16, 2016 | 04:02 PM
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Default Re: 90 EF ZC swap fried the ecu got new want run!

and perhaps replace and repair the crappy wiring job before destroying more ecus?
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Old Mar 16, 2016 | 06:40 PM
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Default Re: 90 EF ZC swap fried the ecu got new want run!

fried ECU was a chipped and mapped P72.
I was told P06 would run her but doesnt seem to work.
was also told i need a new fuse panel
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Old Mar 16, 2016 | 06:48 PM
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Default Re: 90 EF ZC swap fried the ecu got new want run!

wiring has been repaired
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Old Mar 17, 2016 | 06:41 AM
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Default Re: 90 EF ZC swap fried the ecu got new want run!

That's why it's important to disclose all details, from your last post by default you have either a jumper harness OR more hack wiring at the ECU because both ECUs you have listed are newer than pre-OBD and your car is set up for pre-OBD. That right there is another possible source.
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Old Mar 17, 2016 | 07:57 AM
  #8  
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Default Re: 90 EF ZC swap fried the ecu got new want run!

car has mpfi conversion, obd0-obd1 jumper, obd1 dizzy convert(do i need a td43u?), was running p72 chipped on a 2nd gen JDM ZC 1.6l dohc. I have a td03u and bought a mpfi to obd0 dizzy convert from Rywire(being shipped do not have yet). From what I have read my ZC should be running that.
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Old Mar 17, 2016 | 08:29 AM
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Default Re: 90 EF ZC swap fried the ecu got new want run!

Originally Posted by 24TEN
If you're throwing a check engine light then it would be wise to disclose what the code is.
Have you looked this up yet?
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Old Mar 17, 2016 | 09:11 AM
  #10  
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Default Re: 90 EF ZC swap fried the ecu got new want run!

AS 24TEN says, first find out what the CEL code is
I assume the ZC is DOHC? - if you are using an OBD1 ECU, which it sounds like you are, then you need the OBD1 TD43U distributor - you can't use the TD03U OBD0 distributor with the OBD1 ECU - the P06 ECU will run it but you would be better off with the P29 ECU that it should have - the P72 VTEC ECU is not what you want
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