Ry87TII

Everytime that this has happened to me i have disabled fuel and cranked it over a few times... put fuel back to it and it fires right up. It def does sound like a fuel/flood issue to me as well. Does it crank over strong when you crank it over?? Check voltage maybe to see that you got enough juice.

87na33

i have tried that also

87na33

i have tried disconnecting the fuel pump also nothing is working for me

lax-rotor

iTrader: (1)

What's the verdict on the cats?

Ry87TII

Can you get a fuel pressure gauge on there and maybe take a look at what that is lookin like???

RotaMan99

How did you disable the fuel pump, just want to make sure you disabled IT only.

with the throttle fully opened and the fuel pump disabled and lots of cranking, no more than 10 seconds at a time, it should start eventually, run for a few seconds and stall..

arghx

iTrader: (3)

you need to try injecting oil into the engine again. on the front of the UIM, remove the bottom vacuum hose (i'm pretty sure it's the bottom one) and use one of those $8 hand pumps from autozone to inject a little bit of oil in there. Don't go overboard though.

NZConvertible

It's far better to squirt the oil directly into the chamber through the leading spark plugs holes.

chiefnobum

Wait, did you say that you hit 35 psi when you held the button in? Someone can correct me, but when I compression check my engines, they hit 100 psi on each bounce with the button in.

danamezjohn

EGI fuse take out and crank for 10 secs burn all the gas>pop back in then check the spark plugs makes sure they aren't fouled up with oil and gas(clean them if needed).

Check your AFM connection your car will not start if the plunger isn't pushed in all the way. make sure your spark plug wires is set up the right way.

Clog cats could be an issue but not as bad as you think.
it sounds like your car is running rich adjust your tps. since it's an s4 they aren't automatic adjustable like s5's

NZConvertible

That won't do anything unless the throttle is held fully open while cranking, as mentioned several times in this thread. And the fuel isn't burnt, it's simply blown out the exhaust.

An out-of-adjustment TPS won't cause rich mixtures. The TPS has nothing to do with mixtures.

87na33

ok so if my afm was not plugged in all the way would i get a code for that or not. and is there a way to check if ur ecm is giving codes b/c i didnt get any codes.

Druken

Check all vacuum lines to make sure that each and every nipple either has a connection or a cap.
Double check your timing, if you removed the CAS or the underdrive pulley.
Check your return fuel line and see if there is gas going through this line, if not then there is something prior to this that is clogging the line.
Do you have enough gas?
Fully charge your battery.
Make sure all electrical connections are made.
Double check all the fuses, the EFI Inj./ EFI Comp.
Test your starter.
Spray the starter fluid on/in your intake for 3 seconds and try to crank.
Are your injectors clean enough to spray?

NZConvertible

If the AFM isn't connected properly the engine won't run.

coolcustoms

about two feet from the top of the steering column there is a fuel pump relay/fuse.
unplug it and crank the motor until it starts. have the fuse ready to go back in so once it starts, you slip in the fuse and your on your way.

87na33

ok so now i can get it to fire off and run but only if i keep starting fluid on it. the reason it was not wanting to run even this much before was the afm plug. i have an 87 na and i took the motor out harness and all and put in an 86 na with the harness for the 86. well after reading that it could be the afm i noticed that the plug on the 86 afm said A02 and the one on the 87 said A03. well the 86 plug did not come made with on of the ground pins i guess b/c i looked at the 87 plug and seen a pin the 86 did not have. i ohm the extra pin on the 87 plug and see that its ground. so i got a wire and pushed it through the blank hole on the 86 plug and grounded it out. well now with this wire in place i can keep the car running with starting fluid only. hey how much is too much starting fluid to be using, does it hurt rotarys? i have tried all the deflooding again since i can get it to fire now and it still wont start on its own. i have new plugs that i clean everytime but my plugwires are not new. i seen that the trottlebody on the 86 engine was kind of rusted and i wanted to check the air fuel mix and broke off the adjustment screw. so i cleaned up the 87 trottlebody and put that one on the 86. sorry for going on and on i just want u guys to know as much as possible about whats going on to better help me.

Druken

Hmm, if it will only stay on with the starting fluid you might have a fuel problem. Make sure your injectors are clean enough to inject enough fluid to the engine. Also, make sure you have enough oil so that you arn't getting rid of most of it because of the deflooding. If there isn't enough oil in the engine, the compression will be too low to stay running.