bad ignitor or bad CAS???

[josephg15]

i have a sr20det redtop... and im getting a no spark and no injector pulse. i took the coil packs out one at a time, along with a spark plug plugged into it, and had a buddy crank the motor. (no spark) then i used a noid light and un plugged each injector one by one and had the noid light plugged in and cranked the motor, no pulse. what do you guys think is it a bad injector or a bad CAS? thanks any info is great...

[sameo2]

i have a sr20det redtop... and im getting a no spark and no injector pulse. i took the coil packs out one at a time, along with a spark plug plugged into it, and had a buddy crank the motor. (no spark) then i used a noid light and un plugged each injector one by one and had the noid light plugged in and cranked the motor, no pulse. what do you guys think is it a bad injector or a bad CAS? thanks any info is great...

SOUND LIKE U GOT ECU PROBLEM CAS ONLI TELL THE ECU WHERE IS PISTON #1 FOR THE FIRING ORDER.OR CHECK THE MAIN FUSE OR CONECTOR BEHIND THE BATT

[S13FASTBACKSR]

the CAS controls ignition timing as well as fuel injection so this could very well be your problem. The ignitor controls spark so i would guess the CAS first or yes the ECU. heres a test to do for your CAS to find out for sure though...CAS: With the key in the "ON" position and the CAS still connected, check voltage between wire #1 and a ground and then #2 and a ground. While checking the voltage turn the CAS by hand and you will notice that the voltage will/should fluctuate anywhere from 0.1volts to 5volts.

[josephg15]

so when i put the cas back in, do i have to set the 1 piston back to top dead center? ok im going to try it. thanks

[josephg15]

so what do you think about this???? i back probed my ignitor with my dmm and i was getting voltage when i cranked the motor. then i back probed the other side of the ignitor and i didn't get ****. i think i found my problem!!! the ignitor has an arrow on it so i guessing that the arrow shows the direction that voltage should be going. im getting voltage at the back end of the arrow but its not going across...i think my ignitor is open.

this is the arrow on the ignitor (below)

voltage ==> no voltage

[S13FASTBACKSR]

that makes sense i guess..do you have an fsm..there is a great test to do for the ignitor (continuity) but its a long test to write out

[josephg15]

yeah i checked that. there were 3 times it asked for continuity and i got the opposite. so im guessing its bad. and yes i checked it with a analog meter....

[1992s13_drift]

what could be wrong with the ecu? im having kinda the same problem. no spark.

[S13FASTBACKSR]

ya sounds like it could be a bad ignitor and you know if its not then you can always resell it but i dont know why your injectors arent working. The ecu could be bad just because they go bad there is a way to test it...if you do a diagnostic test and the l.e.d. light stays lit then the ecu is bad

[itsnever2fast]

STOP EFFING WITH THE IGNITOR. if you aren't getting inj pulse its not the damn ignitor. when you have the key on run, and you unplug and then plug in your Cam Angle Sensor does your fuel pump kick on? if you have your CAS out of the block, turn the key on, unplug your fuel pump fuse, and turn the CAS shaft by hand you should hear the injectors clicking away, if they aren't your CAS/ECU may have issues, if they are working, check for spark the same way, remove one coil, turn CAS rapidly by hand and check for spark. no spark... check power to ignitor and coils

[kingdutka]

ebay

Ignitor = $20ECU = $50-100 (make sure it's from Japan! You'll have to scroll WAY down on the search results. The people in US are selling for $185+)CAS = $140 brand new on ebay

[josephg15]

so i know its not the ignitor because i had a friend plug it into his sr and it started right away. then i took out the cas and turned it by hand with it plugged in and the fuel pump was priming and the injectors were clicking...but i didnt check it with the fuel pump fuse out...am i supposed to take the fuel pump fuse out?

i just check the timing and my dark link lined up with the dots on the cam sprockets and the piston #1 was at top dead center, the front cam lobes were facing out and the crank pulley was on the second mark from the left (yellow mark)

i dont know why my cars not starting if i have spark, fuel and air...should i check my compression??? i hope it not a bad ground....damn!!!

[itsnever2fast]

i am sure your problem lies in the timing from the cam/cas. keep trying till she fires.

BTW i said to take the FP fuse out so it doesn't flood the hell out of your motor while you are testing it

[josephg15]

oh ok i see...well i check my timing and its perfect...i need to test my cas...and by the way the cas looks likes its in bad shaped...

[itsnever2fast]

if you are getting injector tics when you turn it by hand the CAS is fine. fix your timing. if you have fuel and spark, and no fire condition it is the timing. 99% of the time.

[josephg15]

my timing is perfect....here it is...





i dont know whay its not starting....timing is perfect, i have spark and fuel...maybe i have bad grounds...how can i check the ecu???

[itsnever2fast]

leave the timing chain exactly how it is, an show me the CAS timing marks, the dots on the CAS, set up the mating mark and push the CAS into position, then check to make sure it is on the other dot. if the CAS is not timed right it wont run

[josephg15]

ok ill do it tonight at 6:15pm when i get home... and ill take a pic...check back

[josephg15]

ok here are the pics with the cas installed...everything looks good...im tired of not having my car...it sucks

[itsnever2fast]

eh.. pics are kinda blurry, does it match the picture i linked?

[josephg15]

yes it does...it dont think i set the TPS...does it matter???

[itsnever2fast]

should start no matter what is goin on with the TPS... unplug it if you like.

did you ever check your SPARK by turning the CAS by hand? pull a coil and a plug, ground it t the intake manifold... turn CAS...

[josephg15]

no...i checked spark by taking coil #1 off and plugging in a spark tester on the spark plug while it was in the cylinder and set the coil on the tester and cranked the motor and saw the sparkplug tester light flash...thats how i checked for spark.

[josephg15]

ok...so i just ohm'ed out the injectors and the coils...the fsm says the injectors should have 10-14 ohms and the coils should be aprox. 1 ohm...now on the injectrs i am getting about 11.2 ohms on all, so they are good...and on the coils i am getting 0.8 ohms on all so they are good....hmmm...i dont know if my starter is not catching or what because it sounds like there is a scratching noise coming from the solenoid....

[itsnever2fast]

how fast is it cranking? doesn't need to be very fast.... i hope you didn't blow out your starter bearings trying to test it

[josephg15]

its spinning just like a regular normal cranking...what do you mean blow my starter bearings?

[itsnever2fast]

my friend had a new start on his sr and he kept cranking and cranking, testing it, eventually the starter overheated and just started grinding. time for a new starter.

[josephg15]

so after that it didnt engage...is that what your saying...did he have like the same problem im having...it fixed his problem right???

[itsnever2fast]

no, the starter wouldn't hardly turn it over anymore and made a ton of noise. hes got a new starter, but he still has no start condition..

[josephg15]

thats sucks...well mine is still carnking good...so i think im going to keep looking, and see whats up...thanks for your input.