Coil pack dead? Gotta be more specific? Car still turns over just no spark?

 

MY COIL IS BRAND NEW car turns over fine

 

no spark

 

the coil is inside the distributor and i put a new distributor

 

I dont know how to check for an open circuit or short between my disrtibutor and ecu.

Manual or A/T, California or not?

 

Have yo check the timing belt? If the timing belt is broke, it can't turn the distributor, so no signal to ECM and no spark.

N.E.O.

 

automatic except california, rotor spins timing is perfect there is NO SIGNAL TO ECU FROM DISTRIBUTOR does anyone know why?

 

new echo is right, you'll have to trace open or short circuit in G & Ne signals and the STA circuit. I can only give you my 95's circuit, the 94 may be slightly different so you should get a circuit diagram. On the ECU there is are three connectors, 26 pin, 16 pin, 22 pin. The wiring for G and Ne is on the 26 pin connector. G+/G- is #18yellow/17black, Ne+/Ne- is #4red/5blue. This is from the ECU side so you'll have to match up the wiring harness connectors. The STA circuit gets its signal from the starter. Its purpose is a richer start mixture. This circuit goes to the 22 pin connector #11black/white. I'm not sure if a bad STA circuit will give a no spark or not, but it is part of the Code 12. As for the ECU, if you need yours checked out or fixed here is a great company that will rebuild yours for about $160: http://avproecm.com/index.htm

 

You will have to use a meter to check for NE and G signals at the ECM.

N.E.O.

 

what do i do if there is no signal, because there isnt, and where is the ecu in a 94 camry le 4door

 

also when i turn on the key the speedometer goes about halfway up about 70 and slowly comes back down, the car has only been siting up about three months

 

The ECM is behind the glove box, if there is no signal there then you have to trace the wiring to figure where if there is an open.

No sure what is wrong with the speedo, poor connection or wiring maybe?

Beside replacing the distributor, what else have you done? Did you check all the ground connections to make sure that they are clean and tight? What is the general condition of the car? Got any picture?

N.E.O.

 

Sorry about your bad luck with the car. Did you talk to the used car dealer about the car quit running after 2-3 weeks?

Well, check the stuff like I had suggested, and see how they are and then will see where it goes.

N.E.O.

 

Behind the glove box, it should have a sticker on it indicating as such.

N.E.O.

 

I found the ECM, checked the plugs, and it still just turns over. It still isnt getting a signal from ne and g [distributor]

 

I really dont know what else to do.How do I check for a signal to the ECM.

 

How did you test for signal at the ECM? Were you using a digital meter? Do you have a service manual that you can follow?

You have to understand that it will be difficult for us to help you if you don't understand what you are doing and not asking questions.

So give us something to go by, and what you have done and how you did the test!

We don't mind helping you out but you do have to help yourself first.

N.E.O.

 

I didnt use a meter, everything is plugged in and the connectors look good.I have someone who has a meter, and I know which wires are ne, and g but I'm not sure what to check with the meter.

 

You should have the same resistance readings that you would obtained if you had measure them at the distributor:

Resistance: Cold Hot
G (+) and IG (−) 185−275 ohm, 240−325 ohm
N E (+) and NE (−) 370−550 ohm, 475−650 ohm

N.E.O.

 

Alright, but what exactly do I use the meter on?The wire it self,?

First thing I would do is a simple continuity test of the wiring from the ECM connector. G+ & G- and N+ & N- are just loops through the distributor to the ECM connections. Use the ohm meter function of the meter to see if there is an open connection along the wire. Put one lead to the G+ and the other to the G-, the same for N+ and N-. If there is a break in the wires then you will get no reading from the meter.

 

One more thing. I was looking under the dash on the drivers side, and I found an alarm system but the fuse is unplugged from one side of the wire.I did not know this was there.When I hook the fuse up the horn goes off and the lights flash.I dont think this has anything to do with it because it ran when I test drove it and for about 2 and a half weeks after I bought it. Could this alarm system that I didnt know about make it not recieve a signal from the distributor?

 

Check the terminals on the connector.

Alarm, it is possible, however, that depends on whether the alarm disables the ingition system or not. Maybe try pulling the alarm system off and reconnect all the wiring like from the factory.

N.E.O.

 

Thanks fo all of your help, when I find out if there is a break in the wires or not, I will go from there.

 

from the ne wires the resistance was 270
from the g wires the meter read OL
could there be a fuse link in the wires that could have broke, or does the whole 22 prong wiring harness need to be changed?

 

Go to the AutoZone website at www.autozone.com

http://www.autozone.com/addVehicleId,1970102/initialAction,repairGuide/shopping/vehicleSelected.htm

Go into the Engine Electrical Section and find the troubleshooting data for this ign system.

 

Have you check the G+ and G- readings at the distributor? Jump the two G terminals together at the connector from the distributor, then check it again at the ECM connector. There is no fusible link between the distributor and the ECM. You might also take a closer look at the connectors, sometimes wires do break where it goes into the connectors.

N.E.O.