Mki does not respond, help please

[SW21T]

well as some of you know, my mki just got a fresh built motor. last night I put it all together and got it all ready for the road. I took it for a drive. As I accelerated from a stop sign the car felt real sluggish, I gave it more gas and still didnt pick up and just died. Didnt want to start so I had to tow it home. Today I got in the car and just started it like nothing, but still doesnt accelerate. I checked the throttle cables, they are tight, any suggestions?

[mr2tim]

Sounds fuelish.

Got good pressure?

Timing on?

[Sway]

sounds like your timing is off to me

[SW21T]

Originally Posted by mr2tim

Sounds fuelish.

Got good pressure?

Timing on?

Sounds like the car is getting fuel

The car was put on time, I don't know if it jumped a tooth?

Originally Posted by Sway

sounds like your timing is off to me

Like i said above, maybe it did but I wasn't even going fast, unless the belt was loose? I'm going to have to double check.



But a better description ( I typed the post on a phone)

I'll accelerate and the car moves, but feels sluggish and then just dies. It struggles to pick up, weak.

[te51levin]

You need to get out the tools, get out the book, and diagnose the car.

Is the ignition timing correct?
Do you have any vacuum leaks?
When the car dies, how long does it stay dead before it will start again?
Do you have water in the spark plug wells?
Are the distributor cap and rotor both in good condition today? I don't care when they were replaced - do they look good today?
Do you have correct fuel pressure?

[SW21T]

Originally Posted by te51levin

You need to get out the tools, get out the book, and diagnose the car.

1.Is the ignition timing correct?
2.Do you have any vacuum leaks?
3.When the car dies, how long does it stay dead before it will start again?
4.Do you have water in the spark plug wells?
5.Are the distributor cap and rotor both in good condition today? I don't care when they were replaced - do they look good today?
6.Do you have correct fuel pressure?

1.Yes
2.Shouldn't since I replaced all vacuums but will double check
3.when it first did it, it didn't start at all until the next day, now it will start up right after it dies.
4.No
5.didn't look, but thats a good idea to check
6.I should but I really don't know how to check

[te51levin]

Originally Posted by YELLOW_MR2

6.I should but I really don't know how to check

It's in any repair manual. If you don't have a repair manual, get one. You need one.

Connect +B and Fp terminals in the Diagnostic connector in the engine bay and see if that changes anything, just for fun.

[SW21T]

Thanks man, Will do and I have an owners manual.

[te51levin]

Good, but I am talking about a repair manual, a shop manual - not the dinky little thing we keep in the glovebox, but the big thick mother that tells you how to work on the thing. Got one?

[SW21T]

LOL yes, the one that tells you pretty much how to rebuild the whole thing.

[te51levin]

That's what you need. Should be instructions in there on checking fuel pressure.

[SW21T]

Sweet, I'll check all this week end. On a side not my MKII cracked 2 pistons

[SW21T]

Ok I checked everything, timing is fine, the car is getting fuel, no vacuum leaks.
But what I am assuming is that the car is choking its self with gas.

[te51levin]

So fuel pressure, measured with a fuel pressure gauge as described in the manual, is within factory specs?

And by "checked everything" can we assume that you confirmed that the plugs are firing reliably even when the engine dies out?

And is the AFM plugged in and checking out OK? And there are no holes, tears, cracks, leaks, or missing fittings on the hose between the AFM and the throttle body?

[SW21T]

Originally Posted by te51levin

So fuel pressure, measured with a fuel pressure gauge as described in the manual, is within factory specs?

And by "checked everything" can we assume that you confirmed that the plugs are firing reliably even when the engine dies out?

And is the AFM plugged in and checking out OK? And there are no holes, tears, cracks, leaks, or missing fittings on the hose between the AFM and the throttle body?

Haven't checked fuel, but the reason I say is because the car turns on fine, but after running for a minute or maybe even less and I shut it off, it won't turn back (but still cranks) on and it smells like gas. Sounds flooded.

I checked all that, and seems fine.

That I dont think it is, let me take a pic tomorrow and post it, my afm area is not complete.

[328FTW]

Originally Posted by YELLOW_MR2

Sweet, I'll check all this week end. On a side not my MKII cracked 2 pistons

Pics? Also just out of interest and to threadjack where did your turbo oil feed come from? Out of the pressure switch port in the head drilled out and bit and re-tapped?

Also did you pull codes? Could be an afm issue or TPS related.

[te51levin]

If you think you are smelling fuel, you'd better rule out failing spark. when and after the engine dies, does the ignition system still produce a strong spark?

Originally Posted by YELLOW_MR2

Haven't checked fuel....

If the ignition system is doing its job, you'd better get a gauge on the fuel rail and check it properly. You are checking not only for the presence of fuel, but for correct fuel pressure.

[SW21T]

Yeah it is, cars ignition is working good. When its not flooded the car starts up right away.

Heres a pic of how all my afm is



I have the filter and the cap, just curious on what that side hose goes to (sticking out by the AFM)

[dirocyn]

The side hose is your cold air intake. It connects to the air filter box, which your car doesn't have installed.

If the car is flooding, I can think of 3 things to check: AFM flap stuck open, excessive fuel pressure, and leaky injectors. My money's on injectors, but the other 2 are easier to check.

[328FTW]

I had bad injectors in my 3s from running really high pressure on my turbo setup damaging them. If I pumped the throttle rapidly it would rev up otherwise it would die.