Have spark and fuel.... still wont start!

[ANVIL]

so after fixing my CAS, then fixing my fuel pump issue my car still wont start! im beginning to suspect injectors or something? not sure exactly how to check it... or if anyone else has any suggestions. i really want to fix it this weekend so i can tear it apart for the winter, at least knowing it ran. also to get one last drive in. i did try to start the car without the MAF plugged in, so i eliminated that at least...

[gawdzilla]

are the injectors clicking? try turning the CAS by hand so you can feel the injectors clicking

[ANVIL]

well after working on the car a today i still cant get it to start. I have fuel, and injectors are working. spark plugs were pretty wet actually. verified spark in all cylinders and cleaned up the spark plugs and tried again starting with fuel pump off (incase of flooding) still no start. replaced the spark plugs and tried again and still wouldnt start.

heres a little bit of history of how the no start issue started..

zer...start

im stumped and dont know what to check next...

[ANVIL]

could the seizing of the cas shaft throw my exhaust cam timing off? i think thats the next thing im going to check... dont know what else to check

[240z4u]

I wonder if when your CAS was ground to shreds if it didn't damage the ECU.

[ANVIL]

i hope not. i have a power fc. the hand controller screen works and i did a sensor check with it. seems to be working... i guess i can try seeing if it will start with the stock ecu

edit: now that i think about it, when im cranking it the pfc displays that im only at 2* of timing no matter how i have the cas adjusted. is that normal for cold cranking w/o starting? could the CAS i got be messed up?

Modified by ANVIL at 8:09 AM 10/13/2008
Modified by ANVIL at 8:10 AM 10/13/2008

[240z4u]

I am going to lunch shortly, Ill get back to you when I get back with the timing answer. That doesn't seem right btw.

[ANVIL]

would the car start at 2*?

[HxC_Nismo]

did you change the timing belt? if so then you might be a couple teeth off possibly since you have fuel and spark, or you might have low compression.

[ANVIL]

didnt mess with the timing belt at all. just pulled off the CAS and replaced it. the old cas shaft was seized and damaged because i didnt know i had to use spaces for running no upper cover

[ANVIL]

just checked the cam/timing belt and the timing is still right on...

[ANVIL]

can someone with rb25 and power fc, try cold cranking their car with maybe fuel disabled to see if 2* timing on the hand controller is normal? im beginning to suspect the cas i got

[240z4u]

Mine read 2 degrees while cranking, and the second the motor started to catch it started climbing... 3..4.. so on.

I would THINK it would be higher if you could get the engine cranking faster.

Seems to me 2 degrees under no-fire situation may be right.

[ANVIL]

alright, thanks for checking. i really appreciate that.... but now i have no idea wtf is wrong or what to check. what a headache

[ANVIL]

anyone else have any suggestions on whats going on? still cant get her started.

[240z4u]

IMO you need to try your factory ECU you said you had. It will run like ****, but running will tell the tale.

[ANVIL]

finally had time to dig out the stock ecu yesterday, and tried it... still same issue! anyone else have any other ideas?

also tried it with the stock ecu, maf unplugged. tried the pfc again, and timing went from 2-5 at the highest... seems like it was almost going to start. and also tried it again no maf plugged in.

[BoostFab]

you said you have spark, verify that again, because air + spark = running engine. so i say double check there and see. also did you replace with the similar CAS ?

[ANVIL]

i did verify it again... and yes the same style CAS.

are there any sensors besides, CAS and MAF that would prevent my car from starting?

[eh?]

If you spin the CAS with key in the on position do the injectors/spark plugs fire?

[ANVIL]

i should have tried that last night while i had the coilpacks out, but i did confirm spark while cranking with a spark checking tool. the one u plug into the coil boot and ground it and the light pulses.

i assumsed that since it sparks while i crank it, its the same as spinning the cas, and also since the plugs had fuel and the cylinders were a lil wet also, and i could smell the fuel that the injectors were working.

[Booztd 3]

i should have tried that last night while i had the coilpacks out, but i did confirm spark while cranking with a spark checking tool. the one u plug into the coil boot and ground it and the light pulses.

i assumsed that since it sparks while i crank it, its the same as spinning the cas, and also since the plugs had fuel and the cylinders were a lil wet also, and i could smell the fuel that the injectors were working.

When turning the CAS over by hand, remove the fuel pump fuse....

[ANVIL]

i think i figured it out. hopefully if i have time this weekend i can see if im right.

i think the alignment key on the end of the cam broke off into the old CAS and the new CAS is out of alignment. not sure how im going to figure out how to align it though....

[BoostFab]

i think i figured it out. hopefully if i have time this weekend i can see if im right.

i think the alignment key on the end of the cam broke off into the old CAS and the new CAS is out of alignment. not sure how im going to figure out how to align it though....

that may the culprit there. there's an incentive for new cams LOL