suzukispeeder

I just put it back together at least the top end and it still is cutting out like after 3500 and real shaky when driving it like its missing real bad. I thought after getting the valve fixed it would run right but I guess not.

I had valve job replaced one valve replaced ECT and ACT sensors any one have any ideas all help appreciated

HACKGT350

think of checking your fuel pump it sounds like its dieing off when you get on it

mjr46

what were the symptoms before repair and after??? cutting out??? if so a burnt valve or what ever was wrong with it wouldn't cause those symptoms...you should of kept troubleshooting to get to the root problem..... cut out at 3500 could be a fuel issue or spark related...does it cut out at same rpm everytime when you take it slowly up to 3500 meaning not getting on it??

94RedDevil

I hada similar problem with fuel. It was my regulator so i replaced it. It could be a pump, regulator, plugs/wires,or 1(or more) gummed up injectors. Start with the cheap stuff. Check plugs and put some injector cleaner through there. If that dont work, Then take a fuel gauge and hook it up. Have someone get in the car and give it gas to see if you have any fuel pressure loss. then from there you'll have to look at your regulator and pump. This is what i did to find my problem

suzukispeeder

ok when i was digging the first time I was getting any fire from 2 and 4 had spark and gas but not running did comp test and those two cylinders had lil or no comp so thats when i had the valve job done i had a bent intake, and a exhaust that wouldnt seal.

so now I just got done putting back together couple days ago and it still cut out every gear 3500 or bout, and hour ago I put spare parts car exhaust on my stang because mine didnt have o2 bungs so now runs better 1st thru 3rd want cut out, but 4th about 4000 it cuts out and runs rough above that.

Now since Ive traded for it I put new plugs, fuel pump, filter, ran injector cleaner thru it, and she holds fuel pressure I have it set on 25 or 30 it was on 45 when I got it but it wouldnt even rev up. I have 24lbs injectors what should it be set on.

Dont know if this is causing im sure it aint but when we time it without sprout set it on about 13 turn car off and conect sprout when we check again it jumps up to about 18 any ideas on this .

blk40th

bump the fuel pressure up a lil. try it at like 32-35. not sure y the timing would do that, it could be a different prob. is the car mass air? the computer could be picking up something and advancing the timing.

suzukispeeder

yea it is mass air it has a 70mm tb and the mass has been tuned for it so he says I'll try bumping fuel pressure up a bit. It lopes so bad now and then it acts like it loads up and dies I dont know bout the vaccum lines though I got a diagram but it might as well be in japanese I cant understand it i need a picture of a stock engine bay so I can see if im even close

ampman_27

why did you have a bent valve?

92cobra

ive got 100dollars on your tfi module.

1995GT5.0T5

ive got 101 on the dizzy