[Mando95]

I think i have a bad injector, when im driving the car at a steady speed its fine but when i give it a little throttle it seems to sputter, but when i have it in neutral it revs fine any suggestion? what else do you need to know?

[95BlackStang]

maybe fuel filter.

[Mando95]

I have already replaced it but still no change and also the fuel pump is about a year old

[Bullitt95]

Clean the MAF sensor.
Check the injector harnesses and make sure they're firmly attached to the injectors.
Check plugs, plug wires, dizzy cap, and rotor for wear. Replace as necessary.

[Mando95]

I have tune a complete tune so far and still the same thing getting the cars scanned today and see what turns out

[Trick Tuners]

I doubt its an injector. Talk with your tuner and shoot them a datalog so they can see whats going on.

[95StangMX]

Easy way to tell if its an injector start the car up and pull the plug on your injectors one at a time and you should notice the car stumble a little each time....if you pull one and dont notice anything and you do on the others then chances are you have a bad injector....

[Mando95]

Ill give that a try in the morning, is there an easy way to clean the injectors your self?

[95BlackStang]

Originally Posted by Mando95 Ill give that a try in the morning, is there an easy way to clean the injectors your self?

that fuel injector cleaner they sell at autozone and stuff

[Trick Tuners]

The injector failure rate is very low. Dropping out 1 cylinder is only 13% of the total. I'd suspect the fuel pump, maf, or tune WAY before a bad injector. With today's gas, injectors with 50-100K mi on them never look gummed up.

[Mando95]

So i just took my car to be scanned and pulled a 136 which said 02 sensor heater so i took mine and exchanged them cause they still warranty but still does the same thing. Is there somthing else i should look at with the 136 code. Its getting annoying now and patience is wearing thin so any would help.

[castine917]

do you have a fuel pressure gauge?can you drive and see if pressure fluctuates when it sputters?

[Mando95]

no i dont have one but i can get my hands on one, but i just put a new 255lph pump in it yesterday

[castine917]

was the old pump the same as the new one? can you be sure fuel pressure is same?

[Mando95]

the old pump was just a stocker

[castine917]

i recommend an adjustable fuel pressure regulator and a gauge to see if you are where you need to be pressure wise.

[Mando95]

i test my injectors and found a bad one they all read 15.4 ohms but one so i think i found the problem.

[Mando95]

So i replaced the injector and it runs perfect.

[Bullitt95]

Nice to hear that you've resolved the problem.

[delgadog]

if you don't mind me asking, how much was it to replace your injectors? i'm running into the same problem, i don't have the time nor the know how to check out the injectors. i bought some used 24# injectors off of a 93 cobra (at least thats what the guy told me) and the C&L 73 or 74mm MAF calibrated for 24# injectors. and i'm wondering how much would it be to install all that. maybe i could get that damn sputtering problem fixed. i have an adjustable fuel regulator but no fuel pressure gauge. i should get one.lol. any ideas on which pressure gauge would be good on our cars? i don't know much about them. thanks!