No spark

[Muhammadt34]

I’ve installed the hondata cpr brand new with the harness for it but I can’t get any spark, I’ve triple checked everything and everything has power expect the coil pack itself. I feel like I’ve tried everything.

[Spunkster]

How exactly do you have it wired?

[Muhammadt34]

I have the tach wire with the blue wire and the yellow wire with black and yellow on the distributor, then on the ecu I have red/yellow in A21, purple in A16, black in A23, and red in A25. When I crank it all the lights on the block flash but no spark.

[Muhammadt34]

Pictures*

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39C4BF90-4AC2-494F-B1FF-BD226B6C49F9.jpeg

[Spunkster]

Where do you have it grounded?

[Muhammadt34]

Thermostat housing

[Muhammadt34]

The tach wire has constant power but the yellow one has nothing, idk if it’s suppose to be like that or

[Spunkster]

I think you have wired the power and tach wires to the wrong side of the connector. They should be on the distributor side of the connectors as shown in the help file: http://www.hondata.com/help/cpr/cpr_wiring.htm

[Muhammadt34]

I already tried switching them still the same issue I get no power to the coil itself.

[Muhammadt34]

Wait hold on I miss understood you I see what your saying

[Muhammadt34]

It has spark now thank you for your help

[nitefr3ak]

I have a similar issue. Power and ground alt c and icm all at the ecu step down harness.
Vehicle is 99-00 integra with step down harness
All connections done at step down harness
To save the factory harness from being tapped in to

Now. CPR box has green , yellow solid and red flashing when cranking

With ignition error unselected I get a code 4
Select the box and upload no code 4

Problem is if I check my power and ground. Power is at coils and so is the ground checking cylinder one for pulse when cranking I get nothing
I checked at the cpr/ecu on sync wire and I get 6-7 volts with cranking
But when I use a spark tester on the spark plug / coil. No light flickering with tester
I wanna say the dizzy is jacked up. Or am I missing something
I tried a different ecu and just loaded the map on my personal ecu that has a cpr conversion so the ecu/hondata are out of the equation again what am I missing. I am stumped at this point

[Spunkster]

IT sounds like you most likely have it wired incorrectly. Without seeing the wiring, it is hard to say for sure.

[nitefr3ak]

This is the 8 system wired in. So far and each one has been wired correctly

I double and tripled checked
Yellow red to icm
Red to switched power at ecu
Black to ground at ecu
Purple for alt control
And green to large dizzy connector in to the harness side of the connector.
And yellow to the second large wire at dizzy for power. Now the two wires for the dizzy were depended and taped to the dizzy side harness. And removed coil and taped over the terminals for the positive and negative for the coil after removal now I have red flashing when cranking and. Green light lit with ignition switch on
And sync stays solid and never pulses just stays lit.

Now the car is obd2 with a p28 step down harness. All connections were made at the step down. To avail messing with the factory’s side of the harness the oem harness hasn’t been modded and ignition/dizzy comes with the large 10 wire plug or should I say 9 wires because it has a blank spot.

[nitefr3ak]

Will supply photos once I’m back at the vehicle