d16z6 running problem

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joakwin
Posts: 5
Joined: Wed Jul 02, 2014 2:45 pm

d16z6 running problem

Post by joakwin » Tue Jul 08, 2014 4:27 am

I cant seem to get this engine to run right, right now it wont idle

D16z6 with ported head, ferret valves, pm7 pistons, bismoto valve springs/keepers, adjustable cam gear, mod obx itb's, stock injectors, arp rod/head bolts
bismoto level 2 cam, S300 p28 ecu

the tune was set up on a dyno
and made 144whp

43psi fuel pressure
2.5 in exhaust pipe
ngk spark plugs, R5671a-8

1st gear 3.25
2nd 1.90
3rd 1.346
4th 1.033
5th .878
fd 3.7ss lsd on 175/50/13 tires
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Last edited by joakwin on Tue Jul 08, 2014 4:47 am, edited 2 times in total.

joakwin
Posts: 5
Joined: Wed Jul 02, 2014 2:45 pm

Re: d16z6 running problem

Post by joakwin » Tue Jul 08, 2014 4:31 am

so far I have replaced the icm, coil, plugs, wires, cap, rotor,
ect sensor

the engine was tuned in open loop


the history of the car, the engine wouldn't run pass 150deg temp,

the engine is in a 1984 rhd mini mayfair

the engine harness is from a d15z3,
and the dash harness is from a 96 obd1 edm civic
and re-pinned to work with the p28 ecu

this pass weekend I removed the harness from the car and checked every pin on it

I was missing a wire to A22 but I had one to A21, icm wire, so I pinned that in and solder them together

and D2, brake switch had no wire to it,
so I pinned it in and gave it 12v

and installed it back into the car on Monday and started the car at lunch today

the engine was in another mini, and was dyno tuned in that car, and was ran for a few hundred miles and I got it
and it sat for a yr or so, I painted my shell this pass winter and have had the engine running for a few months
but have only drove the car one time and it was having bugs that ive been trying to work out

joakwin
Posts: 5
Joined: Wed Jul 02, 2014 2:45 pm

Re: d16z6 running problem

Post by joakwin » Sat Jul 26, 2014 7:34 am

I think it has something to do with the tps,


the ohms on my tps are crazy high, and when I manually move the tps sensor, the ohms don't change


im going to replace it and see what happens

joakwin
Posts: 5
Joined: Wed Jul 02, 2014 2:45 pm

Re: d16z6 running problem

Post by joakwin » Sat Aug 02, 2014 4:49 am

put a new tps in, and set it up in hondata

and now the car wont idle at all, I have to keep my foot on the pedal to keep it running

I also changed the dizzy out for another one

and changed the map sensor

joakwin
Posts: 5
Joined: Wed Jul 02, 2014 2:45 pm

Re: d16z6 running problem

Post by joakwin » Mon Aug 25, 2014 11:52 am

Been working on the tune, I got the engine to idle when cold at 12-13afr range, and then at running temp at idle it's around 14.6-14.8afr range

And then around 2000 rpm with the tps under 10% but over that tps it's fine, but that's the next fuel table
, the mixture goes lean around 17 afr, I was in the process of playing with that range of the tune data logging but then I noticed a small brake fluid leak,
Witch turned out to be a huge problem,

Broke a fitting in the caliper and took a few days to get that worked out, then it wasn't the problem, the fitting on the hose was leaking inbetween the steel braided line to fitting was leaking,
So I just got that worked out now,
But today it was raining, so no data logging the car
But most the tune is worked out now, I just have a few spots that need a hair more work

I've been reading my tail off about anything I can find about honda motors

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