d4rkc7owd

Ok I recently bought a s4 thats been sitting for a few months, I threw in a new battery and maintenance the motor, then made the attempt to start it.. when I turn the key I didnt hear the fuel pump kick on so I tested the fuel pump with a power wheels battery and it was dead, so I replaced it and tried again this time it turned on after a couple minutes and success... blew a bunch of smoke then cleared up beautifully. Next day I tried starting but this time it took again a couple minutes to start . I was thinking a bad fuel pump relay resistor.

Also my friend said something about theres also something else in the air flow meter that can make it hesitate to start like that... but once it starts after a few minutes of leaving it on I can shut it off and itll start right back up and it will idle perfect.

He recommended
A s5 air flow meter and Im assuming a new fuel pump relay

Please help thanks

misterstyx69

iTrader: (142)

Your friend is an idiot.Keeping him from going under the hood will be half your problem solved.
The car is an S4 and he wants you to rewire it to put on an S5 Afm?
They do not even have the same connector.

d4rkc7owd

I thought the same im going to swap the fuel pump relay and fuel filter today and hopefully solve my issue and if its the same im going to take the injectors to rc.

One other thing when I drive it and I quickly hit around 5 to 7k it hesitates/sputters.
And my vacs are all new

satch

iTrader: (1)

An S4 GXL does not have the relay you speak of.

As far as the hard start problem you could have a clogged fuel sock, clogged fuel filter, flooding due to injectors, inadequate fuel pressure, low engine compression, aged spark plugs, inadequate ignition........

d4rkc7owd

I didn't check the compression just yet but today i am going to replace the fuel filter prime the fuel system then hopefully it'll start right up.. as far as the relay it does have one, according to Haynes it has a fuel pump relay & resistor behind the passenger light and a starter cut relay near the steering column

semi new coil pack
new spark plugs
new fuel pump and sock
new o rings and grommets for injectors i am assuming a bad injectors though

misterstyx69

iTrader: (142)

Dude,its an 88 and the car does not have a fuel resistor pack as the injectors are HI impedance.
It does have a fuel relay on the steering column are though.
When the car is in START position the AFM will open when you crank the car giving it fuel(fuel pump turns on).If the AFM is screwed when you get NO fuel.

Haynes is the FisherPrice of Manuals..you have 100 thousand guys that actually own a car on Forum here to help you.

By the way you can save yourself a lot of work if you compression check the engine first.It's simple and only involves taking the plugs and a fuse out.

d4rkc7owd

Ok im going to buy a compression tester tomorrow, also going to change the fuel filter and I will get back to you guys with results.

Thanks

satch

iTrader: (1)

Only the S4 turbo has the relay you speak of. All S5's have it as well, but an S4 NA does not and you have an S4 NA.

d4rkc7owd

Ok thanks satch, im looking into the compression test and the fuel filter today. Ill write back with results.

d4rkc7owd

Ok tested the compression and its good, swapped the fuel filter and tried again and nothing..
I checked the coil pack and its good I also took each sparkplug connected to the coil pack and the had spark so each plug and wire was good. Also its getting gas becuase I had to deflood it a couple times and I wasnt even holding the gas down only on start.

So theres spark and theres gas and all fuses are good compression is solid on all faces on both rotors. Im thing a ground source somewhere or bad afm. Not sure..

lduley

iTrader: (1)

What compression #'s did you have??

Also, if you have spark and gas, a ground shouldn't be your problem, if it was, you shouldn't have spark at all

You got 2 of the 3 main things an engine needs to run, and usually air getting to a engine isn't a problem.

d4rkc7owd

[QUOTE=lduley;11667390]What compression #'s did you have??

Also, if you have spark and gas, a ground shouldn't be your problem, if it was, you shouldn't have spark at all

You got 2 of the 3 main things an engine needs to run, and usually air getting to a engine isn't a problem.[/QUOTE

front around 100 and rear 115, has compression, receives gas and spark i deflooded and sprayed starter fluid and not even hint of turning on..

lduley

iTrader: (1)

you don't by chance have the plug wires on incorrectly do you?

satch

iTrader: (1)

Recheck for spark and fuel. Also, make sure the timing is correct.

d4rkc7owd

no sir I double checked

d4rkc7owd

[QUOTE=satch;11667978]Recheck for spark and fuel. Also, make sure the timing

The timing is correct and it has spark, im thinking a kill switch or alarm related maybe leaking injector

d4rkc7owd

no luck yet i am going to take the injectors to rc here in Torrance and have them rebuilt. hopefully that will be my problem.

d4rkc7owd

Ok I put oil in the spark plugs holes this time after a deflood and she started. She smoked cleared then idled perfect, ran it for for about 45 minutes and no problems. She idled smooth at 1k the whole time, now.. I turned it off and waiting 5 minutes and she hesitated a little then started back up. I let her idle again for about 10 minutes turned it off and disconnected the starter relay to cut the fuel pump and gave it 30 minutes and tried again. Now as I was turning it over I had my hand on the relay getting ready to hook it up in tell she sounded like she wanted to start only thing is this time she took alot longer to start but eventually she did. Ran ruff for a minute or so then she was fine again.


Now am I blind or something or are these signs of a stuck open injector thats flooding the motor and causing it to hesitate like this?

Ty in advance

d4rkc7owd

Bump

IamWill

have you pulled out your injectors?
Tried unflooding your engine?

d4rkc7owd

not yet, saving up the 90 bucks to clean them. Ill post update