What are the common symptons why I would get this ? I thought it was gas but nah I just wasted all that gas and filled up on new gas and put fuel injection cleaner. The cel does not come on right away sometimes when Im moving sometimes when im at idle. Oh I hear these clinging sounds coming from my engine . Thanks and sorry for the newbie question.

 

Cligning? You mean pinging? You mean Detonation!?!?!

 

Its sort of like my valves clicking . OH trust me I have heard how detonation sounds like and for a N/A motor I really doubt it . Oh I know its says boostinsi that because im getting boost in december.

 

1. Are there bubbles in your coolant?
2. Blowing oil?
3. Stalling anytime?
4. Oil in coolant or vice versa?
5. Resivoir overflowing?
6. Plugs ok? Gapped correctly?
7. Wires ok?
8. Distributer ok?
9. Rotor and cap ok?
10. How old are the injectors? what kind? resistor boxes?
11. Injectors seated/sealed properly?
12. Have a aftermarket FPR? tried removing it and going stock fpr and driving for a while?

I've also had this problem, a few times all 4 codes, more recently only 71 and 72... but I just replaced all my 80/20 water/antifreeze mixture and all that, had a little bubbling of coolant and those misfire codes prior to coolant flush..... haven't had bubbles or misfires yet... (I'm trying to rule out headgasket in my case)

 

What year and model?

 

im pretty sure that these codes are injector codes.
injectors 1-4

what was the last work youve done on this motor?
how long ago was the last valve adjustment?
sounds stupid but...

 

I thought they were mis-fire codes, cylinders 1,2,3,4 (71,72,73,74)

Someone bust out their Helms and check.

I've gotten them with my Toda C cams (super long duration)

 

My mods were (witch means I had ) Nitrous and everything else is stock. Im gonna do the antifreeze treatment hopefully it works and im checking my compression tommorow. Please inquire.

 

Yep, they're misfire codes. If you used to have NOS why dont you now, cause it blew up? Check your cap and rotor for carbon tracking or cracks. Make sure fuel flow (different from pressure) is good. If you have less than 50,000 miles I'd assume its all good.

 

I sprayed it a couple of times not alot. and I just took it off because alot of problems with the kit.

 

i feel your pain , mine just started doing it yesterday , i checked th eplugs and they were black as all hell i changed em and reset the ecu, i reset my vafc, it was tuned for my mods before i was turning it back to stock , now goign bakc to stock so reser that thinking it was that. . . so it comes back on today , 71 and 74 im getting , i replaced the plug wires to my stock ones maybe my msd are bad? we'll see. the thing is the car runs like crazy i mean its strong as it ever was if not stronger . . . i dont get it .

 

Well finally its been 2 weeks and NO misfire codes.... all that changed besides my turbo being rebuilt (no more eating oil), was I took out the AEM fpr and went back to stock FPR....

Had the aem set at 40 and change psi w/ vac hose connected
Stock FPR is at nearly 50psi w/ vac hose connected

Also no more coolant bubbling since I flushed the system and re-filled with genuine honda pre-mixted coolant

 

hmm, im using the same fpr , is your diaphram fine in yours ? min looks like i was a little moist like where the screw is to adjust the pressure?