97 ek with em1 running gear no start
#1
97 ek with em1 running gear no start
Hi all,
I am sure this question has been asked previously but couldn't find in a search.
So I have installed em1 b16a2 engine, transmission, engine harness and ecu into my 97 ek civic. Everything went in fine, but after plugging ecu in and tried starting...car only cranks but no start.
So...there is no CEL, and no fuel pump prime.
Tried different main relay, same thing.
Checked fuses, all fine.
I was reading one forum saying i need to change from obd2b to obd2a.
But any help would be great.
I am sure this question has been asked previously but couldn't find in a search.
So I have installed em1 b16a2 engine, transmission, engine harness and ecu into my 97 ek civic. Everything went in fine, but after plugging ecu in and tried starting...car only cranks but no start.
So...there is no CEL, and no fuel pump prime.
Tried different main relay, same thing.
Checked fuses, all fine.
I was reading one forum saying i need to change from obd2b to obd2a.
But any help would be great.
Last edited by b16-ek1; 07-20-2019 at 02:42 AM. Reason: Adding info
#2
Re: 97 ek with em1 running gear no start
What ECU are you running?
Did you reconnect and tighten the G101 ground on the thermostat housing?
Did you reconnect and tighten the G101 ground on the thermostat housing?
#3
Honda-Tech Member
Re: 97 ek with em1 running gear no start
Hi all,
I am sure this question has been asked previously but couldn't find in a search.
So I have installed em1 b16a2 engine, transmission, engine harness and ecu into my 97 ek civic. Everything went in fine, but after plugging ecu in and tried starting...car only cranks but no start.
So...there is no CEL, and no fuel pump prime.
Tried different main relay, same thing.
Checked fuses, all fine.
I was reading one forum saying i need to change from obd2b to obd2a.
But any help would be great.
I am sure this question has been asked previously but couldn't find in a search.
So I have installed em1 b16a2 engine, transmission, engine harness and ecu into my 97 ek civic. Everything went in fine, but after plugging ecu in and tried starting...car only cranks but no start.
So...there is no CEL, and no fuel pump prime.
Tried different main relay, same thing.
Checked fuses, all fine.
I was reading one forum saying i need to change from obd2b to obd2a.
But any help would be great.
The fix is to modify your original Civic engine harness to fit the B16A2 engine... add/change any plugs necessary and lengthen/shorten what is required. Purchase an OBD-2A -> OBD2B ECU adapter and plug in your EM1 ECU. Turn the key.
#6
Honda-Tech Member
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#8
Honda-Tech Member
Re: 97 ek with em1 running gear no start
So, you didn't use the '97 Civic engine harness ??? This means that you only have two plugs plugged into the ECU... missing the critical third plug that is found on your original engine harness. This is WHY you are having problems.
The fix is to modify your original Civic engine harness to fit the B16A2 engine... add/change any plugs necessary and lengthen/shorten what is required. Purchase an OBD-2A -> OBD2B ECU adapter and plug in your EM1 ECU. Turn the key.
The fix is to modify your original Civic engine harness to fit the B16A2 engine... add/change any plugs necessary and lengthen/shorten what is required. Purchase an OBD-2A -> OBD2B ECU adapter and plug in your EM1 ECU. Turn the key.
#9
Honda-Tech Member
Re: 97 ek with em1 running gear no start
The bottom line is ANYTHING can be made to work... but why work HARD when you can work SMART. It will always be easiest to start with the chassis/engine wiring in the car instead of mix/matching model year items. Changing a few wires and plugs on the engine is far more simple than changing a ton of wires and plugs inside the cockpit.
#10
Honda-Tech Member
Re: 97 ek with em1 running gear no start
That is part of it... but only a small portion. ECU output wiring is predominantly focused on the plug that is part of the under dash (cabin) harness on the OBD-2B combination... whereas, the OBD-2A engine harness has the 3rd ECU plug attached and output wiring is spread over all three plugs and converge into the green "crossover" plug. This is why there are soooo many more wires in the '96-98 green plug when compared to the '99-00 green plug.
The bottom line is ANYTHING can be made to work... but why work HARD when you can work SMART. It will always be easiest to start with the chassis/engine wiring in the car instead of mix/matching model year items. Changing a few wires and plugs on the engine is far more simple than changing a ton of wires and plugs inside the cockpit.
The bottom line is ANYTHING can be made to work... but why work HARD when you can work SMART. It will always be easiest to start with the chassis/engine wiring in the car instead of mix/matching model year items. Changing a few wires and plugs on the engine is far more simple than changing a ton of wires and plugs inside the cockpit.
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Honda Civic / Del Sol (1992 - 2000)
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08-08-2007 02:04 AM