HELP! Car won't fire after Turbo Install
 

I just finished installing a FA20club turbo with AEM water/meth injection and new AEM 50-1210 fuel pump.

Tried starting it and the the engine was turning over but wouldn't ignite. I tried it a good 5 times for about 5 seconds each. Car has never had any problems starting before.

Is the fuel pump priming?

^he beat me

Do you hear the fuel pump starting when you turn and let the key at on before starting the car?

I think so. There's a whirring sound but it's coming from the engine bay.

I thought it was the pump so I tried pulling it but there was pressure in the lines.

Your MAF is connected?

Yup. All sensors are back on. I did have a bitch of a time getting the pump in and I'm not sure it was fully seated. Followed the DIY but no dice. I'm thinking that's choking my fuel supply if the inlet of the pump is under too much pressure.

Are the plugs connected properly? Not sure if they came out or not with your install. Im just trying to eliminate the easy stuff first lol.

Lol yeah all connections are good. First thing I checked.

Any codes?

Because it wouldn't start the dashboard lit like and Xmas tree. My tune is tomorrow so I got no reading devices right now.

Hmm sorry I am not much more help dude. Who is doing the tune?

Did you replace the stock map sensor?

Let's start from the basics. Did you upload the tune that came with the turbo? When I had my SC installed, I had a Visconti tune with a bad file. Car wouldn't crank. Switched to the stock tune but the car wouldn't crank.
Check the tune.

I'm gonna go with what AVOturboworld said.

I had a faulty 3 Bar MAP sensor, and it would just keep trying to crank and not turn over.

Plug the factory one back in and see how you go.

gav

if you have changed MAP sensor or injectors its unlikely it will start or run on stock tune.

and it can actually be bad for engine as it may run extremely rich with unscalled replacement injectors.

I swaped my stock map for 3 bar when I bought the kit. So that's the problem then?

Running stock injectors, only upgraded fuel pump. i can confirm it was priming and pressurizing the line.

I don't have any files to tune, was running open flash but am getting Ecutek from my tuner tomorrow so I'm stuck on stock tune.

i was working on testing the system to make sure it would run. i'm getting it towed to my tuner tomorrow.

Sasha form On Point is doing it for me.

swap the map sensor and try again.

Unfortunately I don't have another one. I got the kit used and I saw it all running on his car about a week before I bought it, so I'm assuming it still works ok.

Sorry, I meant swap your map with your stock one.

When you were running the Open Flash, it was on the stock Map sensor right?

I swapped my stock MAP for the 3 Bar one when I got the turbo kit. So I can't even try the stock one.

ahhh my mistake.

Hope you get it sorted buddy.

Your car will not start unless the tune is tweaked for a 3 BAR MAP sensor. It's a simple table with two values the tuner can quickly change, but without that little change, it just won't start.

I'm thinking fuel pump. What pump are you using? When I installed my full blown 270 (longer than stock) I tried to just shove everything back together and it would prime and would build some pressure but not enough. After I zip tied the filter on and added a few o rings on the neck it worked fine.

This. I ran into the same exact problem when I swapped my MAP sensor out. The voltages for the MAP sensor have to be changed in the tune before the car will start. Find a local buddy and put his OEM MAP sensor on to verify the car will start.

It was the MAP sensor got it running this morning.

On my drive home from the tune my fuel pump cut out. Made the 8 pulls on the Dyno and about 35/75km on the highway with some pulls getting there.

I could feel it leaning out as I drove but didn't realize what it was and it just kind of cut out on me.

I have the AEM 50-1210 pump but had to force the canister to get it to close. I'm worried I've choked out the sock and have blocked fuel to the pump.

Anyone installed one of these? I got 3 o-rings, pump clicked on, couldn't get the clips from the housing to the canister on though. Just kind of jammed the canister in close the tank lid.

If you were able to get it on with a little force I would say that should be okay. If you are worried, pull it back out and drill some holes and secure it using zip ties. That is what I had to do with the Full Blown pump, and it worked great for many miles with the correct number of O rings.

It was ALOT of force. I had to lean on the whole thing. to get it clicked in and to get on the tank my buddy pressed down on it while I threaded it on. I'm worried I choked out the pump with too much pressure.

I think you need to do what King said and pull it out, secure with zip ties or cable ties. Even if the tank lid itself if holding it down, i think over time and vibration it will have a chance to move a bit. The O ring area is very sensitive and just moving it out of place a bit can cause the fuel pressure to be lost right there.

chocking the sock is a good second theory although I don't think that's it.

Attachment 115421 here is what I did on mine to secure the sock.

Turns out a coolant line exploded and the engine overheated but shut down before any damage occurred. I've got better lines on it now, but I still have the leaning out issue.

My pump came with it's own sock so i don't think that's the issue. It was getting the sock, pump, and hoses secure in the canister that was the problem. Should I drill holes in the side of the canister to secure the pump assembly to then?

Was it an Omni 3-bar MAP sensor by chance?

FYI, they go bad often, I also bought one new that didn't work. They are garbage.

Get a Denso or Bosch MAP sensor and don't look back.

I'm having a similar issue with my setup, I've got a 4bar Omni map sensor, have you changed from the oem one back yet and got it all working ?


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I unplugged mine and it ran. Needed a tune to compensate for the 3 bar sensor.

Update:

I've had just about every problem under the sun with this damn turbo. it wasn't the pump driving back from the tuner, one of the coolant lines over heated and blew spewing my coolant everywhere. engine overheated and cut, luckily no damage. Put on appropriate lines and no issues since.

The car is hesitating under load. I'm waiting to get a wideband installed so I can figure out if it's lean or rich, but I'm thinking starvation. I took it to a shop (way to frustrated to trust myself at this point) and they are saying pump and injectors are good and it's a tune issue.

Driving home from a car show this week I had major hesitation and rough idle causing a stall. One of the vacuum lines failed causing a vacuum leak. I was hoping this was the main issue, but the vacuum leak is fixed and I'm still getting hesitation under load.

I'm using a tune that was on this kit on another car that worked perfectly. I'm out of ideas at this point. I've got my tuner saying its mechanical and my shop saying its the tune.

I did find a loose v-band, but its connecting the wastegate pipe to the waste gate, so it should have any impact on the AFR. I can't get at it with the tools I've got right now without taking some major parts off the car.

http://www.ft86club.com/forums/showthread.php?t=92601

Found this thread today, my issue is identical (I think) not sure what the tune changes were though. My tuner came highly recommended from other 86 owners running all kinds of boosted applications. Mine was tuned on a dyno.