Wicked94z28

Hey All the dyno's in my area are down for some reason so I traveld 2 hours away to a pcmforless dealer and had him flash my pcm.. got home, stuck it in, and its acting the same way as before the toon except now I have no ses light on LoL.... When I start it up I can rev it and it does pretty good, just has some popping every now and again.. when I pull it to the road and just try to casualy give it gas it surges back in forth like it wants to run but it cant(still goes down the road but realllyyy shitty), when I punch it it acts like something is holding it back.. anyone have anyclue... thinking it might be o2's.. this is a fresh build.. mods are in sig. .... also was wondering, i have a accel coil and a oem opti.. would the coil be to much for the opti?

SS RRR

iTrader: (2)

Check, check and re-check to make sure plug wires are routed correctly. When you are sure they are routed correctly, check them again.

IronOutlaw

iTrader: (4)

Sounds like a fueling issue to me. Try putting a gauge on it to begin with and check the A/F ratio if you can.

o2 sensors arent used when going WOT.

Wicked94z28

has a new 255 walbro, and 36lb injectors.. it smells rich.. ill check the wires again tomarrow but i checked them like 3 times already..

robsquikz28

iTrader: (246)

check the wires for sure....


any codes at all???

Wicked94z28

just had my cpu flashed and at the moment there is no codes...

Wicked94z28

could it possibly be my timeing? i did dot to dot but dont know if it needed retarded or advanced.. i have the comp cam xfi 292..

defaultexistence

iTrader: (11)

mine does that when the plug on the temp sensor on the water pump housing loses connection ..timing and fuel goes fuking nutz...

Wicked94z28

just went through and checked the maf, o2's, water temp sensor, wires are all right, tps, someone told me to get some new plugs and gap them at 35 instead of stock 50.. so im omw to snag some new plugs and gap em up!! wish me luck!

Wicked94z28

forgot to hit post on the thread above lol.. but just got in .. put new plugs gapped to 35 and still the same ****... idk wtf it is... only thing i can think of is air/fuel ratio, which pisses me off cawz pcmforless said after they flashed the pcm that itd be ready to drive and go to the track this sunday.. waste of around 250 bucks after gas to go have it done..

IronOutlaw

iTrader: (4)

What kind of FPR are you running?

Wicked94z28

I have a 93 1 bar intake with stock fpr

Wicked94z28

just took the opti off and checked it to make sure it was installed right and it was, put it back togather and still doing the same thing... could it be the stock fpr ya think?

LigHtEmUp01

im having a similiar issue! let me know if u fgure it out!

IronOutlaw

iTrader: (4)

The only way to tell is to put a gauge on it man. IIRC you can pull the vacuum line on the FPR and if fuel comes out it is bad.

88sixliter

I had my car do exactly the same thing, does it pop through the intake when you crack the throttle and rev up but not really accelerate? If so, its bad news
but you need to do a compression check. If yours turns out like mine, you have a burnt intake valve. Not all bad though, just means its time to upgrade those heads. By the way before mine took a ****, I had a dead O2 sensor that was stuck rich and leaned out bank 2 ( likely what killed the valve ). From now on I will stop driving it when its hurt, should have know better. Hope it works out for you