Okay I give up I changed the pump and nothing.

I can hear the pump now. But it still doesn't start. The coils are getting 12v. So does that mean they are getting power? Or do I need to test the 3rd wire? I don't have the tools to remove the spark plug I feel pressure in the lines now too but WHY WON'T IT START?!?!?

Also the temp sensor code came back. You guys sure it doesnt control anything? I have no other codes...

How else can I test EU? Should I just open it up?

 

try a different working ecu from a friends max??

 

Just stick any old $2 plug in the coil and hold the ground to the block



You do not need to open it up.
Check for a spark first. If no spark, pull connector A off the back of the EU and jumper the input and output of channel #4. Stick the test spark plug in that coil, ground it, crank it and check for spark.

 

I will do that, also the I have noticed the temperature needles keeps moving up as I crank but it is at cold when the car is in ACC.

 

maybe since you've done so much cranking it fouled the plugs and won't start because they're wet?

 

Shouldnt they dry off pretty quick tho?

 

I would try looking at that fuel temperature sensor again. Do the Diagnostic procedure on the FSM. Check all your grounds in the car as well.

 

It has continuity I don't know what else to test. If eng and others could run w/o it plugged in, I should be able to, too.

 

They may be attributed to the cel. The FSM says that "Rationally incorrect voltage is entered to ECm, compatred with the voltage signals from the engine coolant temerature sensor and intake air temperature sensor." Sounds like something is related to your temp gauge moving.

 

I tried putting a 2.2k ohm resistor inplace of the ects and no difference.

 

The cluster coolant temp gauge has its own sensor (shared with the climate control) that has no wiring in common with the ecu. The ects is a separate sensor that the ecu alone uses.

Kevlo911: Are you going to check for spark?

 

Tomorrow morning. It's too cold right now Now I really hope it's the eu, so I don't have to worry about anything else.

 

Cold ??? Are you not in Florida?

It is about 30 degrees here right now. Soon it will be time to break out the propane heaters.

 

It's 50 here. I am getting kind of bored so I might do it in a lil bit.

 

I connected all the wires together on harness A, I matched the in's and out's for each cyl up. Still doesn't turn on. So I guess it is not getting a spark at all. I am about to go buy a spark plug and find out.

What else can I do?

 

Get yourself a spark plug socket and extension while you are out and pull out a plug. Check for spark and you should also smell fuel if the injectors are firing.

 

FPR!!!!! try that if its cranking and cranking. then its just not drinking i would check that next. and look for ank kind of vac leak.

 

Comfirmed spark. I will see if I can rent the tools from pepboys or something. I don't wanna buy since I have 2 sets at home. The only way I confirmed fuel is that the EU logs the duration/duty cycle in and out. But I will remove the plug later today and see what's up.

What else could it be now? I am fckin lost.

 

A vacuum leak is just unmetered air. An engine will start with the MAF disconnected which is simulating the most extreme vacuum leak (ie 100% unmetered air)

 

So that was with a spare plug and the EU ignition circuit bypassed?

 

Spare plug but eu plugged in normally.

 

Next is confirm injectors are firing and that your fuel pressure is good.

Is there an rpm signal on the EU when you are cranking? What are you using for the rpm trigger (ignition or crank input?)

 

Burn the car


J/k hope you figure it out soon.

 

don't post bs like this.. if you're not going to help..

 

Crank angle, and it reads rpms.

What's the best way to confirm that the injectors are fireing? I am uploading pics of the spark plug right now.

 

 

Should the plug be even a lil bit wet when I am cranking? It is not wet whenever I pull it out after cranking. When I remove the feed hose from the fuel rail, gas comes out and when I turn the key to ACC more fuel comes out, so does that mean it has fuel pressure?

 

It means you have flow but not necessarily pressure.

You should be able to smell fuel at the plug hole after cranking with the plug out. You should also be able to hear the injectors opening using a s***hoscope or a metal bar (eg long screwdriver).

 

Alrighty my roommate should be free so he can crank the car while I listen. I will do it after lunch. I have a feeling the injectors are not fireing. If not, what could cause that. I was under the assumption when most sensors go bad there is no spark(crank, cam, ect...)

 

Well the injectors must have power because that is routed through the same fuse as your starter solenoid. However if they are not provided a ground through the EU then they will not fire.

It sounds like your crank and cam sensors are OK, otherwise you would not be seeing spark and getting rpm readings. However this does not guarantee the timing of the spark and/or fuel injection events is correct.

Do you a spare injector lying around?

 

I have nothing here at the apartment. I had to buy tools just to work on it here. $$ > me


I still don't understand why it just died never hesitated or sputtered or anything. What signal does the EU read and send to injectors?

 

The EU takes the IPW signals from the ecu, adds or trims them based on your injector map and grounds each injector accordingly.

You mentioned earlier that the engine stalled earlier. Did it start right back up like there was nothing wrong?

Are you getting any fuel smell when cranking without the plug in?

 

Yeah started right up no problems.

 

We still do not have physical confirmation that you are getting fuel into the cylinders.

 

I smell no fuel. Roommate left before I could go test any other way. So I am pretty sure they are not fireing.

 

Should I try some starter fluid and see if it runs then?

 

Hmmm I was thinking, if the injector ground wire comes dissconnected from the EU; the injectors won't fire right? I am gonna check that wire in a lil bit.

 

That is correct.

Did you solder your connections or use those little bullet connectors Greddy supplied?

 

I soldered but I am hoping it broke loose, then I can enjoy my weekend.

 

Yay it works

I will resolder that wire later after the game