ilusive

i have a red top sr, was running a week ago but it wouldn't idle and now it wont start.
It has spark, fuel, rechecked the timing and good compression. I'm lost at what could be the problem, the top end was recently rebuilt (it was running until recently when it decided not to start anymore)

jedi03

what happens when you try to start it? can you upload video showing as well? checked for codes?

ilusive

it will just crank but never actually turn over, but about a week ago it was running now it stopped. throws code 55, and for some reason it wont let me upload any videos

NukeKS14

so, upload it to youtube and post a link?

FaLKoN240

Cas? Tps ?

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jedi03

so engine spins...do you have spark fuel air compression? also oil, gas in the tank etc?

ilusive

cas and tps are both good
it has good compression and the link to the vid is https://www.youtube.com/watch?v=DuMhwYr_9OA

Future240

You have another ECU you could swap in and check?

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ilusive

yes but its for whenever it was a stock sr, the one on it now is tuned by martin

ilusive

anyone have any idea of what it could be?

S14rebuild

U say it has fuel....is that fuel pressure, or physically fuel sprayn from the injectors?

ilusive

it has both fuel pressure and the fuel spraying from injectors

brndck

cranking and turning over are the same thing.
starter engages with the flywheel, physically rotating the flywheel, which turns the rotating assembly, "turning it over".

FIRING is something else entirely.

F.A.S.T.

Fuel

Air

Spark

Timing

check those 4 and report back. you have at least 1 missing.

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jedi03

while someone is cranking w/valvecover off see if the cams spin, ground plug against intake to verify spark...

brndck

wait. it was running, THEN you "rebuilt the top end", THEN it wouldn't start?

or

it was running, you rebuilt the top end, it was STILL running, THEN it wouldn't start?

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ilusive

it was running, then the top got rebuilt, then it randomly stopped after I fixed the cas and put a new tps in

Future240

Have you checked it with another CAS or TPS? I know you said they were good, but the fact it stopped running after you changed these two variables kinda points to one of the two.

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ilusive

to be more clear, it was still running after I put the new tps on and and fixed the cas, it was out of timing, then I went to try and fix my idling issue the next day and it stopped running
so is it the cas then?

S14rebuild

timming is still fukddd


If ur cas was bad ud have no injector pules/sparky

jedi03

prob cas just a tooth off or close...so easy to get off

ilusive

quick update, I replaced the spark plugs and reset the timing completely. now it seems to pop like it's about to start first time starting everytime then it'll just crank and flood the cylinders

S14rebuild

Set mechanical timing properly then put the cas in properly...

ilusive

yes, I set the mechanical timing properly and the cas is installed properly

ilusive

fixed the problem, my fpr blew, just replaced the fpr and it started right up

S14rebuild

You said you had fuel aka proper fuel pressure.....


Either or glad its running