chimengcha

My hatch was stolen a few weeks ago and when we found it, I decided to put on a kill switch but it was my first time doing so. With that being said, when i finished and tried to start the car, the engine cranks but no start. my cousin and i first thought it was the fuel pump so i changed the fuel pump and still no start. we need moved to replacing the main relay, still no luck. after doing more investigation, happen to find out that there's no power being sent to the fuel pump to pump fuel into the engine. What should I do next? stuck!

tony_2018

Check fuses. Did you use a relay to install the kill switch?

chimengcha

I check all fuses and no fuses have been blown. My uncle told me that if all my lights in the cluster doesn't come on then its a electrical issue and I would need to bring it into a mechanic to find out where the power is out at. I'm switching out the ecu at the moment to see if that solves the problem. if not, then i'm gonna be even more confused.

fcm

Tossing parts at the problem is an expensive way to trouble shoot a problem.

Back to basics, if the fuel pump is not running, find out why, the PGM-FI Main Relay and the ECU control the fuel pump.

Start by checking for the three powers to the PGM-FI Main Relay, unplug the relay and probe the terminals in the plug with a 12V test light or millimetre, you should find three 12V powers
1- 12V constant, hot at all times.
2- 12V switched, hot in run and start.
3- 12V switched, hot when cranking to start only

If all 3 powers are there test the black lead for continuity to chassis ground, grounded at thermostat housing.

Are you saying cluster lights are not turning on? 94

DumpdEJ6

Why are you trying to change the fuel pump and main relay and all that? Let me get this straight:

Your car ran fine before.

Then you installed a kill switch.

Now your car won't run?

It's obviously something you did wrong installing the switch. Did you make the switch kill the power to the fuel pump or kill the ground to the main relay? I would recommend the main relay option, as you are dealing only with grounds and not 12v that could short out and pop a fuse unknowingly.

Go back over your kill switch wiring and if necessary, reverse all your work to bring it back to stock.

chimengcha

I've already put everything back to stock but that didn't solve the problem either

deadnote

first post, so i hope im in the right place...
i have a stock 94 del sol dohc vtec...
i had a crank intermittent start issue as the fuel pump was not getting juice all the time...i have a good relay... when i pulled the ecu i found a fried circuit...i am having a hard time finding a 37820-P30-A00 and was wondering what my options are, i want to keep it stock...

e0325

DeadNote you should have started your own thread but, here is one on ebay

OBD1 Manual P30 ECU B16 DOHC vtec Civic SI | eBay

tony_2018

On second ignition do you hear the fuel pump prime?

fcm

What kind of kill switch did you install and where to what??? 94

chimengcha

ISSUE HAS BEEN RESOLVED. THANKS FOR THE TIPS EVERYONE

Former User

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