sr fpr problems.??

[gingerbredman]

hey guys, one of my buddies recently swapped in a sr20det and from what i gather its the fuel pressure reg. the fuel pump comes on like it should, comes out the line from the filter, but just STOPS at the FPR. the fpr was installed when the motor got here, so idn what coulda happened, im thinking it may be either plugged up or broken, or there's not enough fuel pressure for it to operate properly. the stock 240 fuel pump should work, no? i would really like to see it run, if anyone can help it would be appreciated

[SpeedRacer1]

Did you accidently reverse the fuel lines?

[gingerbredman]

i dont think so, theres the one line bout 1" around that runs to the fpr from the fuel filter, and a vacuum line?? that hooks up from the intake, the fpr itself bolts onto the fuel rail, im stumped, shoot everybody is, but i bet is so simple lol

[IanS]

the line from the filter should go to the opposite side of the rail, it does not go to the FPR, you have the lines reversed.

[gingerbredman]

thanks that was the problem, as far as the fuel line deal goes, i checked some pics out of an sr20det engine bay to make double sure. now it seems the injectors arent shooting any fuel, it'll hit every 2nd turn or so when first cranking, then nothing, its going through the fuel rail though, so idn but it IS one step closer

[IanS]

check for injector pulse, check for spark, check compression.

[gingerbredman]

ci senior, i will try that. apparently the car will crank and run on starter fluid, another thing, the radiator isnt hooked up, the blow-off valve isnt connected, and the little vacuum hoses coming from the wastegate arent hooked up to anything, i dont think this would cause it not to crank, but im not really familiar with the sr motor

[gingerbredman]

alright, it turns out theres only one bolt with the spacer, holding the fuel rail in, maybe it needs to be completely bolted up for the injectors to seal, it could be losing pressure there..?? any other ideas?

[IanS]

do you have good compression in all 4 cylinders, do you have spark in all 4 cylinders, is the electrical timing and mechanical timing set correctly.

[gingerbredman]

no comp. test yet, but mechanically sound by ear. spark is good all around, the timing/ ignition hasnt been touched since the motor arrived, so i dont think its out of tune and im assuming the wiring is good since a guy was hired to do all of it. anyhow the car is in my yard now, so im going to have a chance to tinker with it

[IanS]

dont assume anything is right just because you didnt mess with it, when I gogt my motor I spent hours trying to start it until I discovered that somone had pulled out my CAS and put in back in 180 degrees off. check your spark timing.

[HPR]

dont assume anything is right just because you didnt mess with it, when I gogt my motor I spent hours trying to start it until I discovered that somone had pulled out my CAS and put in back in 180 degrees off. check your spark timing.

ugh... I've encountered the same problem before and it stumped me for a good full day. Fortunately, the sound of a motor trying to fire up when its CAS is a full 180 off is quite distinct. Kinda like the car is trying to shoot it's owner hahahha

[gingerbredman]

aww man, here we go, i've come to find another problem. it turns out that the steering knuckle hits the manifold when it turns. im tempted to say throw a spacer underneath the motor mount. it came with mounts, but i remember seeing somewhere you have to reverse the mounts, with stock ka mounts i think though. the motor leans toward the driver side a bit, i know a ka does..but idn. as far as the CAS i'll be sure to check it out, when i find it. gracias guys

[IanS]

does it hit the manifold or the heat sheild, you have to take the lower heat sheild off, they all hit.

[gingerbredman]

yup it was the lower heat shield, much appreciated now i guess i need to get a "noid" tester thing to test inj. pulse and find the cas. btw i've heard some people refer to the cas as the CAM angle sensor, if the sr has both, then which do i need to look at?

[IanS]

the cam angle sensor is the one most often reffered to when saying CAS, it is at the front of the head on the drivers side, it tells the ECU where the cam is in its rotation thereby controling the timing of the spark. I wouldnt worry about the crank position sensor, (CPS) I havnt heard or anyone having problems with it.

[gingerbredman]

..the cas, is that the round box on the front side of the motor with wires running across the front to the back of the motor? im just thinking, because i've looked up pics of sr's with that thing faced the same direction as the one thats on ours. if it had to be reversed the wires would be coming out the opp. side

[Trax07]

i got the same problem anyone ever solve this? could it be that when the lines were crossed it fed up the fpr?