sr20det help

[scottsnissan]

Ok im Fixing to get a car witha sr in it.A black top s13.Has the lil fins in the head.(if u know what i mean.

I was wonder what type that is and what ecu should run on it.?He currently has a red top ecu 62 and says i need a 64 or so dont know what to look for to get one.Help?

Aslo was bought from phase 2(is that a good place.?

Has paper work jus havent seen it yet.

!45 comp all the way/Good/Bad?

[180fan]

Phase2 is a decent place for clips. I've seen a terrible clip from them before which was written off as "comp tested" but there was no trace of a hand ever touching the valve cover with the layer of dirt that was on it. But one bad clip in many good ones, I think that's a pretty good chance of a good motor except...

145 across is a bit low.

[scottsnissan]

what should it run.And i dont think i have the right ecu cause its says 62 on it

[180fan]

FSM shows 156 psi as standard and 128psi as minimum with a deviation of 14psi between each cylinder as the maximum. So I guess your compression isn't too bad. Maybe I was thinking of the KA's comp numbers lol. Sorry if I scared you.

[S13240]

Early black top is E5(manual) and E6(auto). You can still use the red top ecu fine though. And 145 psi across is still good, was that a cold compression test or warm? As long as it's not under 128 psi then everything is good.

[scottsnissan]

how would i use a older ecu?THe car is running real rich now .Once turbo spools up i cant get past 3500 to 4 g?

Dint see anything in that site about wronge ecu./or using older ecu on blacktop.

[scottsnissan]

Aslo what other MAF can u use so that i can rule that out since u say a redtop ecu will work.Car has hard time starting then getting to idel takes a few mins or so i say around 2mins.

[S13240]

Definitely you can use a 62 ecu because I have a black top in my fb as well and I tested my friend's 62 ecu from his red top for him and idled and drove fine. Yours is probably maf related or perhaps even a big *** boost leak since the car is running really rich.

And other mafs you can use would be z32, q45, ka24e, and older nissan pickups. All those I listed needs rewiring though depending what the car is using already.

Oh btw, Phase2Motortrend is very reputable. One of the best shops I've ever dealt with.

[scottsnissan]

I know the car has a leak in the elbow where the egr valve was,THe guy used everything from the clip he could ,But i have another 3'elbow from megan but the put the bog threads as ka24de.So which o2 should i put there or jus have the hole welded.

Thanks to what s13240 said my first test is gonna be the elbow then run down the intercooler pimping then mafs.

Aslo i need to know if a redtop water temp will work on a blacktop.Maybe other reason.

THanks to the help i will post results asap ,Might be a lil while but will do.Any other info would still be greatly app.

This is my first sr20det and Having a blast.What i always wanted.

Aim chvybeatsford if that helps.I need more people like Yall around
Modified by scottsnissan at 8:11 AM 6/12/2005

[S13240]

That leak on the o2 extension that you're talking about was for the AIV tube I believe. You can get a blocking bolt to plug that up from:

http://srownersclub.com/Mercha...C-AIV

Or if you're looking to replace that stock O2 extension with a greddy/Megan/HKS unit anyway then just leave it to leak and upgrade it with one of those I mentioned which doesn't have that hole there for the AIV tube.

[scottsnissan]

any more help please.

[scottsnissan]

Aslo forgot to ask if a REDTOP watertemp sensor would work on a Blacktop both s13 temp sensor maybe that whay ecu thinks car cold and is in choke

[SpeedRacer1]

The O2 ECU wiring for redtops and blacktops is different. Temp sensors are the same between the redtop and early model blacktop.

[scottsnissan]

Well the car ran fine for about a moth thin started all this is what the guy told me.What part of the wiring diff and could it have this effect.How can i test my o2 i had it unpluged and ran the same.What o2 can i use i herd from a ka24de but unsure.

Also i found the plug from ecu to dashy was unpluged(u know the one u plug in under clove box ) THat man the car get past the limit i had but still running real rich

[Taylor_Durdan]

ok. you an run these ECU's

6264E5E6

dont sweat the cu's.. youre fine.

MAFS should be 52F00

for the O2 sensor, you can use the secondary O2 sensor from any S14 KA24DE (thats the O2 sensor after the cat)

the only time the blacktop wiring is different from the redtop is when its Kouki blacktop motor. you can tell if it is a kouki motor by the fins on the front of the head; there will actually be half of them there. but trust me, dont worry about it b/c a 62 ecu wouldnt even start it if it was a kouki motor, so dont freak out.

i would try replacing your plugs first. im sure with that plug undone a hair it ran so rich that theyre all fouled out. go buy a set of NGK BKR6E plugs.. then gap them to .028

if it still runs too rich, i would say maybe swap out your coolant temp sensor.

[scottsnissan]

heres a pic.also we changed the collent temp sensor more than once.Do wh have to ahve a black top one or should a red top work.

[Taylor_Durdan]

thats a normal blacktop motor. you can use the redtop ecu.. you will have no problems

[scottsnissan]

thx needed that info