JDM_Kevin

ok so i have a t3t4 hybrid turbo, greddy exhaust manifold, hks ssqv, 3" downpipe from the manifold as the exhaust, 450cc injectors, AEM high flow fuel rail, high performance head gasket, apr head studs, aftermarket radiator, front mount intercooler, everything else is pretty much stock except on the manifold it doesnt have o2 sensor hole and the car is running REALLY rich, we still have to go get it street tuned with a wide band, but the real question is... when we start it up it sounds nice and all but cylinders 2 and 4 arent firing right, but when take them out to check if they are firing right they do spark, so i was thinking there is 3 possibilities, 1. the timing belt is off 2. the distributor isnt at the right degree 3. the ecu isnt hooked up right. another thing is i have a zc swap and the motor is an obd0 and we wired in an obd1 ECU ourselves to the stock engine harness. so can anyone possibly tell me why cylinder 2 and 4 arent sparking right and 1 and 3 are?

Mr.Death

You cannot run 450 cc injectors on a stock ecu. This is why your car is running like ****. Hide the keys until you are ready for tuning. Try a basemap to see if things are up to snuff.

singleslamwonderman

what he said X2 ^^^^ are you getting a CEL? im pretty sure you are, but im sure there are a few codes..try finding that out and let us know..

julioboostamante

holy ****! 450's on a stock ECU.... walk away from the car!

but seriously, get a basemap and a chipped ECU. also, you cannot run a OBD1 dizzy with a OBD0 ECU Pick one or the other, match the ECU's OBD system and the dizzy and then get that ECU chipped and a basemap.

http://www.homemadeturbo.com is your friend.

JDM_Kevin

alright cool thanks dude but the ecu is chipped and tuned to 10 pounds, and we just recently bought alot of extras including internals, so i was thinking it was a spark or timing problem, am i close at all?

sixgunsound

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by julioboostamante &raquo;</TD></TR><TR><TD CLASS="quote">
also, you cannot run a OBD1 dizzy with a OBD0 ECU
</TD></TR></TABLE>

JDM_Kevin

we have a obd1 distributor. but new the car is getting way to much fuel but the basemap on the ecu is tuned for the injectors. we have triple checked this and after we turn the fuel pump on for like thirty secounds, then turn it off he car idols for atleast a minute. which does not seem right.

thatblkguy

You say u wired in an obd1 ECU to the stock engine harness.

How was this done?

N2HIFI

still using the resistor box right?

97grnrs

check compression too.

JDM_Kevin

this was done through 2 wiring diagrams from a chiltons manual, one for a obd1 dizzy and one for a obd0 dizzy, it was a simple but pain in the *** process, took a while thats all