I recently change my ECU from an P06 to Chipped P28 and Now my engine wont start and i dont have fire to plugs. Before i change the ECU my baby run fine?

 

Please Help

 

So switch it back to the po6 then. If the car starts then obviously the ecu was the problem, if it doesnt start then check your grounds/dizzy.

 

I change it back and still no fire; however, my alternator is off! Does that interfere with the spark plugs not have spark! Here more information- I have 1994 Civic DX with a D16/Z swap! I just brought the car with a bad Trans. I placed a new Trans in the car and wired everything back! I am positive that the wires are excited because I labeled the parts with masking tape! I also replaced the timing and water pump! My dad wanted to check the timing before I replaced the cover and installs the new a/c belt, alternator belt, when we tried stating the car without the alternator being installed for a brief moment to make sure everything is fine, however the car will not start! It turns over but no fire to the plugs!

 

Please Help!

 

No fire; however, my alternator is off! Does that interfere with the spark plugs not have spark! Here more information- I have 1994 Civic DX with a D16/Z swap! I just brought the car with a bad Trans. I placed a new Trans in the car and wired everything back! I am positive that the wires are excited because I labeled the parts with masking tape! I also replaced the timing and water pump! My dad wanted to check the timing before I replaced the cover and install the new a/c belt, alternator belt, when we tried stating the car without the alternator being installed for a brief moment to make sure everything is fine, however the car will not start! It turns over but no fire to the plugs!

 

Does the fuel pump also fail to prime? Did you reconnect the G101 ground that attaches to the thermostat housing?

 

The fuel pump prime! and the G101 ground is on!

 

Any CEL codes? Does the Blk/Yel wire attached to the coil and ICM have voltage with the key in ON(II)? If there is voltage, test the coil and igniter unit inside the distributor.

 

no CEL codes and the Blk/Yel wire attached to the coil has power! The car was running until i did the tune up and trans!

 

Test the coil and igniter unit.

 

The coil and igniter unit seems to be fine!

 

What makes you believe this? Have they been tested?

Does the CEL work?

 

BC the car was running great! its been in my garage for one week and now it wont start! n the only thing i done was the timing and trans!

 

and the CEL works it is my shift light!

 

This reasoning is flawed. You NEED to test the coil and igniter unit.

 

okay! i test it 2morow!

 

Listen to RonJ, he knows his ****.
Last week a ca came in for a vtec head swap
Finished it, car started up fine. Idled for about 20 mins.
The customer and I jump into the car for the first test drive.
As soon as he shuts his door......poof.
Car stalls out. Tested the coil...no dice. Replaced the coil, car drove fine and has had no problems after that day.

What im getting at is, the coil can randomly take a dump. No rhyme or reason to it....when it goes...it goes.

 

okay!

 

did u put the ground from the engine to the frame back on? the big one?, make sure its clean your car will not start without that ground

 

Only one thread is allowed per topic. Threads merged.

 

U guys were right it was the coil! i purchased an new one and bang she started! thanks for all ur wonderful input u guys know ur stuff! Thanks a million!

 

ahahaa and you didn't want t listen to Ron. yous a fools