ososlohatch

well i have a good friend that built a 4cylinder race car for the local dirt tracks and he's been having some real problems with his new setup its a n/a z6 but about to be mini me cause he blew up his second block this season ( 4 races in) and now the problem is the car run fine if you just start it and let it idle rev it up yadda yadda its fine .. as soon as it hits the track (always fourth or 5th lap) the car just shuts down the engine .. he still has interior power it doesnt cut out. It isn't throwing any codes and he hooked his scan tool out and he said the injetor pulse start flat line'n and thats when it shuts done... here is a list of things he has tried
fuel pump
main relay
ecu
eninge harness
alt
extra grounds
coverd battery terminals with foam
he said it did on two diffrent z6's when i asked him what he was using for injectors and he said the guy at napa ordered him some for a accord becouse they have a higher flo rate ( don't know if this is true or not.)
next on the list of things to try is differen't injectors .. im wondering if his are suppoed to be high impedence and he has low in there and needs a resistor box hooked up r something .. if thats not it then we are going to try a dash harness .. p.s. it never had this problem last season with stock injectors he said he isn't sure if both motors had the accord injectors in them when he ran them.. but one has a snapped rod and the other block has a melted #3 piston .. so my question is ... does it sound like a injector problem or no ?? here are pics of the beast

juli0_bustamante

is your friend a redneck? if so have him PM steve and ask him about refreshing your motor for 50 plus ponies....

ososlohatch

yea but he is somewhat full of knowledgabilities he graduated from mmi ... motor have to remain or appear stock .. but we got a couple things done :1 just need to figure out this gremlin

93z6t

dude thats ------- bad *** im big on dirt track racinh have a uncle that races ascs and super sprints won track champ like 8 years but the only 4cyl class they have here is full of beat *** vws and pintos and ----..gl with getting that fixed def a cool car..

ososlohatch

me and pissnuts are building a 93 gsr with a b18b for the same tracks he races on

anybody have any thoughts ?? the only thing i can think of would be injectors cause it would make sense once the car is running and driving there is to much load on them causeing them to shut off .. but its fine at idle or revin it up..

pissnuts

gs-R for the win hmt style they dont even know

Smith-02

low imp injectors take a while to overload the ecu. throw an ohm meter on em. if they're less than 3.. go get some resistors.

stillnoturbo

I think Stevemode was thinking of trying out his haggered EG coupe. After talking with the inbreed sister ------- retards that race in that class at his track all their uncontrollable knowlegdeabilities.

Adam Hopkins

I have personally fixed this EXACT!!! issue on two different track cars locally. All I did was chip and tune the motor with (insert favorite obd1 rom editor here ex. eCtune, Crome, uberdata) and all the problems went away. I promise this will fix it as I have now fixed two cars with this exact issue.

Post back and let me know when you tried this and it worked

ososlohatch

then why does it do it with a chipped p28 also ralphy ... i think im ganna talk to him he said the injectors he ran last year were at like 2.5 ohms and the ones in there now are at 20ohms