Major Issues

[Z32man]

i have a 91 tt and this weekend i was planning on changing my old style injectors to the new style injectors because im tired of misfiring. so i bought the adapter kit from Z1motorsports (http://www.z1motorsports.com/product_in ... ts_id=3348) and i bought some 370cc new style injectors from a trusted friend and installed them as the instructions said. but on 2 of the injectors it seemd like 2 lower injector adapter didnt fit as well as the other 4 because i think 2 of the injector lower o ring were a little bit smaller. after i put everything back in my car i turned the ignition and i her an awful grinding noise coming from the transmission/starter area. so i call up a friend and we check the relay which was fine and then we switched out my starter with another one and the noise is still there. after one of the times that i tried to start it i looked under and i saw there is fuel leaking from my exhaust pipe. I stopped messing with it since then. I have no idea what to do now. If my injectors sent too much fuel into my engine is it completely screwed? and i still dont know what caused that grinding.

[Ace2cool]

The grinding is your starter on its way out, not aligned properly, or not hooked up correctly/ dirty connection. Nothing to do with your injectors.

Try this:
Check/ clean the connections on the starter, and try again. If it's still got a grinding noise, pull the starter off and inspect the gear on it. Take it to an Auto Parts store to get it tested. If it tests good, mount it back up and try again. If it's still grinding, there's something wrong with your flywheel. I can almost guarantee it's not you injectors that are the cause.

EDIT: If the "grinding noise is more accurately described as a bunch of very rapid clicks or clunks as opposed to a metal shredding against metal grinding, then charge your battery/ have the car jumped, as the battery is just low.

[J30tChumpCar]

Ace I disagree, the car was running with misfires, the injectors were all changed with comment on the o rings, now the car wont turn over and there is fuel from the exhaust....

Here is most likely the situation, 1 or more injector has not sealed filling cyls with fuel causing the starter to mess (check flywheel for missing tooth later).. Skip checking the starter and pull the spark plugs to get the engine unlocked and determine witch cyls are being trouble or actually just buy a new SET of injector o-rings and replace them. (Yes a complete redo, sorry)

Caution do this outside the garage in a open space with a decent fire extinguisher handy as now you will be spilling a ton of fuel on a electrified engine and misfiring starter, make sure to remove all coil packs to minimize the chances of ignition.

[Z32man]

Ace I disagree, the car was running with misfires, the injectors were all changed with comment on the o rings, now the car wont turn over and there is fuel from the exhaust....

Here is most likely the situation, 1 or more injector has not sealed filling cyls with fuel causing the starter to mess (check flywheel for missing tooth later).. Skip checking the starter and pull the spark plugs to get the engine unlocked and determine witch cyls are being trouble or actually just buy a new SET of injector o-rings and replace them. (Yes a complete redo, sorry)

Caution do this outside the garage in a open space with a decent fire extinguisher handy as now you will be spilling a ton of fuel on a electrified engine and misfiring starter, make sure to remove all coil packs to minimize the chances of ignition.

so you are saying that fixing the injector problem will fix the starter problem?

[chaunceysj]

Ace I disagree, the car was running with misfires, the injectors were all changed with comment on the o rings, now the car wont turn over and there is fuel from the exhaust....

Here is most likely the situation, 1 or more injector has not sealed filling cyls with fuel causing the starter to mess (check flywheel for missing tooth later).. Skip checking the starter and pull the spark plugs to get the engine unlocked and determine witch cyls are being trouble or actually just buy a new SET of injector o-rings and replace them. (Yes a complete redo, sorry)

Caution do this outside the garage in a open space with a decent fire extinguisher handy as now you will be spilling a ton of fuel on a electrified engine and misfiring starter, make sure to remove all coil packs to minimize the chances of ignition.

there is no way the fuel system is supposed to come into contact with the starter. if somehow you have a bunch of leaky o rings the only possible explanation is that the top o rings didn't seal and fuel is leaking out of the rails and down the back of the engine affecting the starter. which would still be highly unlikely.

as for it not turning over, did you ohm test the injectors before you put them in? and the fuel pump rely has been checked as well? as you said before it is possible that fuel can leak out of the lower o rings if they are too small, or they are old and tear. id always recommend new o rings with injector changes. if you smell fuel in the exhaust of the car but it not starting, either the spark plugs are all bad, the order of the injector/coilpack harness could be wrong(it wouldn't start but it would thump around or backfire), or its flooding like you said. pull a spark plug and take a look, and check all the connectors. also you sure you don't have a big vacuum leak? plenum has a new gasket and its tightened down as well as the balance tube and all the tubing? it would be anywhere from a noticeable whooshing sound to a high pitched whistle.... and if its big enough you wont run either.

[Z32man]

i replaced all of the spark plugs when i put the new injectors in. and ive check the wiring many times as well.

[chaunceysj]

did you replace the gaskets as well? for the plennum?

[Z32man]

ya i replaced the plenum gasket

[chaunceysj]

hmmm if all wires are connected, new plugs are in and theres no vacuum leak then it is possible the cylinder is flooded but i doubt all are flooded so it should still start...thats wierd. ohm the injectors yet?

[J30tChumpCar]

Will the o rings fix the starter problem? Possibly if there was no damage to the flywheel or starter from trying to spin a locked motor.

The fuel should have no contact or cause a starter problem? Incorrect, the issue is a fuel locked cyl or several, the fuel WILL be all over the place when the plugs are removed and the engine rotated, thus the fire warning.

Ohming injectors? Should be done to prevent even more work but aint what has been described.

Here is the key to the entire issue, you started the day with a running, misfireing the car right? Then during installation of the used injectors with used o rings and I quote "2 lower injector adapter didnt fit as well as the other 4 because i think 2 of the injector lower o ring were a little bit smaller" ..... "after one of the times that i tried to start it i looked under and i saw there is fuel leaking from my exhaust pipe"

It seems likely your odd injector o rings are not sealing the bottoms causing the worst flooding ever,to the point of filling and locking the engine.. Start by removing the 2 plugs on those questionable cyls and rotating the engine but be ready for the gusher, have a helper with a fire extinguisher and be clear of the house.

[Z32man]

Will the o rings fix the starter problem? Possibly if there was no damage to the flywheel or starter from trying to spin a locked motor.

The fuel should have no contact or cause a starter problem? Incorrect, the issue is a fuel locked cyl or several, the fuel WILL be all over the place when the plugs are removed and the engine rotated, thus the fire warning.

Ohming injectors? Should be done to prevent even more work but aint what has been described.

Here is the key to the entire issue, you started the day with a running, misfireing the car right? Then during installation of the used injectors with used o rings and I quote "2 lower injector adapter didnt fit as well as the other 4 because i think 2 of the injector lower o ring were a little bit smaller" ..... "after one of the times that i tried to start it i looked under and i saw there is fuel leaking from my exhaust pipe"

It seems likely your odd injector o rings are not sealing the bottoms causing the worst flooding ever,to the point of filling and locking the engine.. Start by removing the 2 plugs on those questionable cyls and rotating the engine but be ready for the gusher, have a helper with a fire extinguisher and be clear of the house.

yes my car was running then i did the installation and all of this started to happen. i am ordering all new o-rings and i am going to replace all of them next weekend. thank you for your help i will let you know if this fix's the problem.

[chaunceysj]

Will the o rings fix the starter problem? Possibly if there was no damage to the flywheel or starter from trying to spin a locked motor.

The fuel should have no contact or cause a starter problem? Incorrect, the issue is a fuel locked cyl or several, the fuel WILL be all over the place when the plugs are removed and the engine rotated, thus the fire warning.

Ohming injectors? Should be done to prevent even more work but aint what has been described.

Here is the key to the entire issue, you started the day with a running, misfireing the car right? Then during installation of the used injectors with used o rings and I quote "2 lower injector adapter didnt fit as well as the other 4 because i think 2 of the injector lower o ring were a little bit smaller" ..... "after one of the times that i tried to start it i looked under and i saw there is fuel leaking from my exhaust pipe"

It seems likely your odd injector o rings are not sealing the bottoms causing the worst flooding ever,to the point of filling and locking the engine.. Start by removing the 2 plugs on those questionable cyls and rotating the engine but be ready for the gusher, have a helper with a fire extinguisher and be clear of the house.

wasnt trying to attack you if i came off that way, and must have not got what you were saying. i see what you mean now and that does make sense.

[J30tChumpCar]

I was just checking back to lighten up to sound less a a**.. LOL No attack felt just me trying too hard perhaps

I read the first post and immediately did a head palm, the issue stuck right out as I see things people "fix" get worse before getting better sometimes.. it happens and I wanted to help. lets see how this pans out next week but for now removing the offending plugs should relieve the starter problem if I was correctly reading. Wait, removing all the plugs and letting gas evaporate all week without rotating may be a safer method

Dont forget to lubricate the new o-rings for easier, tear free install.

[Ace2cool]

Oh, wow. Yeah, I completely missed the fuel leaking from exhaust bit. Yeah, I'm going to revise my statement to what everyone else said. Good luck, and hope you didn't damage anything.