2000 Honda civic hatch, turbo Ls/vtec with 57 miles on engine, obd1 AEM EMS, Innovative Wideband.

Car was driving perfect, airfuel was where it needed to be at all times. I was cruising down the interstate and the car started to miss fire till it finally died. The car will no longer start. Its getting fuel, comp, but no spark.

Here's what the car is doing that is strange.. The car turns over fine but no attempt to fire. If you hurry and turn the key to the off position while the engine is still turning the engine tries to start for just a sec.

If anyone has any idea what's going on please help.

 

Have you checked the distributor? If its not getting spark, I would try swapping out the distributors and see if that fixes the problem... I had an Integra once that did that... Sometimes the coils just take a crap, but I've also had it where there was a short in the distributor somewhere and once the car would warm up it would start to miss and buck and then it would just shut off... Hope this helps!

 

We switched the distributor with one from a running car same issue

 

check your ignition switch?

 

Took the electrical part of ignition switch out and nothing looked bad.. It seems like a relay or bad ground. I just can't seem to find the issue

 

Did u check your crank signal wires?

 

Sure sounds like the ign. switch... http://techauto.awardspace.com/ignitionswitch.html the contacts do not have to look as bad as these to not work properly.

Use a meter or test light and test for power on the yellow and black/yellow leads of the ign. switch harness when cranking to start. 94

 

We bypassed the crank sensor to eliminate that issue.

 

Here's a pic of the main relay taken apart.. It has a strong electronic smell.. I have no tools here at the moment to take test. Does this relay look burnt or is this normal?

 

I also found out that the crank sensor wires rubbed the alt. Belt and were touching each other.. Since then we have bypassed the crank sensor and we are now getting signal from the pickup in the distributor to eliminate a bad sensor..

Would the crank sensor fry the main relay if it were to short??

 

crank sensor (ckf) has nothing to do with the car not starting.

 

The crank sensor has nothing to do with the PGM-FI Main Relay.

It is impossible to tell from the pic if the PGM-FI Main Relay is damaged, although a strong smell is an indication that it has at least gotten hot.

All you need to test the PGM-FI Main Relay is a 12V test light, I you are working on your car yourself, you should have at least a test light, [under $4 at any car parts shop] a multimeter would be even better, under $30 at Radio Shack.

Also the PGM-FI Main Relay supplies power for the fuel pump, [fuel pump relay] the injector relay supplies power for the injectors, the fuel pump relay, [internal] two inputs, [power] to the ECU/ECM, along with some engine valve/solenoids, nothing to do with spark.

Have you checked the coil and ICU?

Also check for power to the distributor assembly with key in start position.

Have you checked for power on the yellow and black/yellow at ign. switch harness, during cranking to start, yet? 94

 

I pulled the distributor off and put it on a friends car. His car ran perfect with it.

 

Have you checked for power on the yellow and black/yellow at ign. switch harness, during cranking to start, yet?

Also check for power to the distributor assembly with key in start position.94

 

Tried a regular ecu and it is showing codes 1 and 6. Attempted to start the car and it fired right up!

Called AEM and they said the EMS will lock up and not run with errors.