Here's the setup. B18C5. Chipped p28 ecu (was in the car when I bought it so not sure of what was changed with it). Motor was just rebuilt. Bored over .25 pistons replaced with jdm b16 oversized pistons. ACL standard main and rod bearings. Everything else is stock.

Whats happening. Car starts up and runs (takes alittle longer than normal) idles pretty well. But when I open the throttle alittle bit the motor bogs down really bad and stalls unless i let go of the gas. Motor has maybe 1 mile on it. When I first fired it, it did bog but not to the point of stalling. When I first fired it up i let it warm up and then took it out for a spin to break the motor in. When I was driving it was misfiring really badly. Not sure if i am leaving anything out. Thanks in advance for help. also if you have any questions or if there is something you think i might be leaving out please let me know. Also, I have check my ignition (firing order is correct, cams are still in correct position at TDC, I am getting spark from all of the spark plugs, cap and rotor button were replaced approx 10k miles ago). Any suggestions accepted, thanks again.

Free to whoever helps me get it running well

 

My first guess is timing.

 

Thanks for the suggestion. Gonna be able to get my hands on a timing gun tomorrow. Anyone else got suggestions?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboKneeGrow &raquo;</TD></TR><TR><TD CLASS="quote">Thanks for the suggestion. Gonna be able to get my hands on a timing gun tomorrow. Anyone else got suggestions?</TD></TR></TABLE>

like dave said , timing .

just go check the timing and see what happens ,

im willing to bet its just a stupid timing issue .

 

Sounds like you are maybe off by one tooth on the cam gears. Mine did the same thing.

 

Ok. Well I'm gonna check it tomorrow and hopefully that will be it. Thanks guys.

 

so your running ctr pistons? you should really get tuned before running that on the street that misfire you feel might be detonation since you comp is atleast 12.5 or higher now.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR.#1446 &raquo;</TD></TR><TR><TD CLASS="quote">so your running ctr pistons? you should really get tuned before running that on the street that misfire you feel might be detonation since you comp is atleast 12.5 or higher now.</TD></TR></TABLE>

no not ctr's jdm b16 pistons. from what ive seen it normally yeilds around a 11.4 cr.

 

o ok

 

try playin with the dizzy, try to advance or retard it, c if it helps

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bjones &raquo;</TD></TR><TR><TD CLASS="quote">try playin with the dizzy, try to advance or retard it, c if it helps</TD></TR></TABLE>

tried that before i posted this didn't realy help. was still bogging down pretty badly.

 

Set the motor to TDC and see if the cam gears line up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skata89 &raquo;</TD></TR><TR><TD CLASS="quote">Set the motor to TDC and see if the cam gears line up.</TD></TR></TABLE>

When I did that. If the notches on the cam gears were lined up the TDC notch on the crank pulley is maybe 1/8" to 1/4" to the left of the marking on the timing belt cover. So i'm thinking everyone who said its a tooth off on the cam gears is right. I am gonna move the timing belt teeth one further to the right and see if that lines everything up (if my logic is right that should move the crank pulley notch clockwise just a smidge)

 

Haha bored at work so I did this awesome MS Paint diagram of what I plan on doing. Tell me if this plan sounds good to you all.



By lifting and moving the timing belt one tooth in the direction of the arrow I should be able to get the TDC mark on the crank pull to line up with the mark on the timing belt cover and still have the marks on the cam gears line up.

haha work is slow tonight. nobody wants to commit any crimes on easter sunday lol.

 

map and tps plugs might be switched. this usually doesnt throw a code but will cause simptoms you describe

 

Thanks to everybody that helped. It ended up that the damn fuel pump had slipped loose from the hose attached to the top of it..... sooo i wasn't getting any fuel pressure. Runs great now.