Frist no spark, got that, now no fuel

[burntricer]

hey guys, im determined to get my car running today

i now have spark, but my injectors simply are not firing, i have a resistor pack ( i believe it is a dropping resistor for the CA18DET, i essentially found another 5 spd pulsar, it had some sort of single cam in it, but the entire hatch was filled with DE stuf...so i grabbed the resistor.

I have the fuel pump coming on, i have the injectors properly wired, i have power to the resistor from the ECU, all my injectors have power. but im not getting injectors firing.

curious, how do i check resistance on an ohmmeter like where do i click the leads to, i cant get it to give me a reading that isnt 1 or 0

im willing to make my own resistor pack, i have a sinking feeling thats where this is stemming from

Lyle

[ca240sxcoupe]

im not one to be a jerk but its either in the stickies or on the archieved forums or in the fsm, but anyway ill share what i do know. the fuel injectors should get a steady power source to the not sure of the actual voltage but it should be a current supply, the ecu will pulse a ground signal to each injector completing the circuit letting the injector spray. So the number one thing to check would be some of your grounds if you are getting power then your problem is either with a ground or ecu.

to check the power pull back the plug on the injector closest to the connector(the rubber piece) and expose the two wires that lead into the injector, one is the power wire other is the ground, so with your voltmeter place the positive on the striped wire( i think its the striped if not try the other) and place the negative or black wire from the voltmeter to any ground on the car and see what voltage you have running to them. If you dont have any voltage you may not have the right injector resistor or not one at all, the connector is right by where the maf wires would have originally been until you cut and extended them....

[burntricer]

i dont consider anyone a jerk until they prove otherwise. ive read the stickies, and searched the acrived and no archived and the post title/body, so ive been checking all my bases.

the injectors do have constant power, the grounds are all solid, the resistor pack is one that i had to wire myself, thats why i think i have the wrong resistor. im trying to trouble shoot to see if it is the wrong one.

Curious tho

pins 101/103/110/112, are the injectors, they have a stripe, those are signal (aka ground) right?

well pins 107/108/116 are injector grounds, these need to be grounded to the engine correct?

the other wires that dont have a stripe (white, yellow, blue, green) go to the resistor, the resistor is powered off pin 58, so that provides power to the injectors right?

thing is thats how i have it wired....

anyone got any ideas?

[burntricer]

k, hooked a noid light on, and it pulsed, have pressure at the rail, have vaccum at the FPR

still no fuel

so i poured some in the cyl's and BANG out the intake, backfired like a sonnofa *****!

so im assuming timing...

[ca240sxcoupe]

these motors are very particular about timing and i havent had it for long but in the time that ive had it i found that out the hard way...

like float always says its not hard to do the timing but it is easy to do it wrong...make sure you have the right amount of teeth between the marks on the cams and on the crank it took me and two friends about 45mins to do it with the timing cover already off....we had to figure it out the hard way that one person cant do it by themself....just check the fsm and let us know if you need help....

[burntricer]

thing is i changed the timing belt, but i didnt move anything, so i dont think the timing could be out...

[ch187]

so you change the timing belt? yeah i bet its timing. you be surprise how easy it is to **** up. redo your timing and try again

[burntricer]

but would timing cause me not to have any fuel being fired into the cylinders?

[burntricer]

anyone?

[burntricer]

i find it really hard to believe that no one has any ideas/ tidbits of info that mite just help...

[boost_boy]

anyone?

No. Have you checked your ecu? Just because it gives a code 55, it doesn't always mean that everything is okay. It just means that most of the critical components the ecu was designed to monitor doesn't report faults. If you think your ecu is good, then your wiring job is suspect. Remove the crank angle sensor from the timing cover but keep it plugged-up, then with your ignition in the run position, rotate the shaft on the crank angle sensor and see if you hear the injectors pulsing. If they don't pulse, you could have a failed injector driver in the ecu (happens when you buy an ecu from someone who had troubles with their own swap and possibly screwed-up the ecu before it got to you) or again, crappy wiring job.

Dee

[burntricer]

see dee! that was the kind of answer i was looking for!, lol, the timing was dead on BTW...

[burntricer]

No. Have you checked your ecu? Just because it gives a code 55, it doesn't always mean that everything is okay. It just means that most of the critical components the ecu was designed to monitor doesn't report faults. If you think your ecu is good, then your wiring job is suspect. Remove the crank angle sensor from the timing cover but keep it plugged-up, then with your ignition in the run position, rotate the shaft on the crank angle sensor and see if you hear the injectors pulsing. If they don't pulse, you could have a failed injector driver in the ecu (happens when you buy an ecu from someone who had troubles with their own swap and possibly screwed-up the ecu before it got to you) or again, crappy wiring job.

Dee

Nope, they are pulsing.... what could cause them to not squirt tho :S

[mbmbmb23]

Nope, they are pulsing.... what could cause them to not squirt tho :S

Reversed fuel lines? Upside down fuel filter? Busted FPR? Bad fuel pump? If they pulse but dont squirt then they arent getting fuel pressure. Injectors are simply valves that open and close (pulse), if they arent squirting fuel either all 4 are blocked with something inside them or they arent getting fuel directly pressurized by the fuel pump.

-m

[burntricer]

yeah the lines were reversed, still not running yet tho, it is back firing now, i checked yesterday and i have exactly 39 cogs on the top and 49 from the crank to the top...

how else can i do timing other then the CAS...

[Jiggyfry]

Itll run today man, keep with it.

[burntricer]

lol ya, hopefully

[burntricer]

If the ECU showes codes, in mode III will it make it so the engine doesnt start? im getting code 13 for the CTS

[boost_boy]

If the ECU showes codes, in mode III will it make it so the engine doesnt start? im getting code 13 for the CTS

It doesn't matter what mode it in, it's will still run. Check your connections, the sensor or again, the wiring.

Dee

[ch187]

dee..man..i never thought of the cas thing. thats ****ing genious. thats going to help me out a lot in getting mine running again for the 18th time. thanks mate.