86gxlsp

anyway this isnt once of those my car wont start things......
when i am starting up my rex it has a hard time starting, it always starts thanks to my fuel pump cut off switch. when it finally fires up..it is misfiring like crazy, like full on misfiring. so..after about 10 secs, the runs normal. but it happens instantaniously. has anybody had this problem....whats your opinion all you rotary guru's?

thanks

Matt

RunningDeer

When was your last tune up.. plugs, wires, timing, etc?

86gxlsp

i just put in racing beat colder plugs....it was happening before i put those plugs in...i was hoping that what cure the problem. im going to order in the MAGNECOR 10mm racing wires...soon. im wondering if it is one of the coils...but im not sure?? crap!

dorifc3s

replace them and see. it could b the wires causing it to misfire. if its also having a hard time starting, make sure its cranking fast enough.

Peruvianrx7

iTrader: (25)

check ur compression dude... goodluck it might just be a clogged fuel filter

Rxmfn7

iTrader: (4)

Hanging a bunch of new parts on the car in hopes of fixing the problem eventually is a pretty shitty way to do things. Why dont you try and diagnose what the problem is before just going out and buying new parts? There are ways to test the ignitors, ..test the resistance of each of your plug wires to see if they are in spec, test to see if your injectors are leaking, do a compression check, etc...

86gxlsp

thanks for the info....but i wasnt planing on just thorwing in new parts.....i was just planning on geting the new magnecor wires anyway in the future..my wires dont look to good. But thanks again for your input. i guess nobody has had a problem like this before?
its alittle hard to work on my car when i live at an apartment....but i'll start diagnosing one thing at a time. whats best to start with?

86gxlsp

it does seem to crank fast enough....i think its the misfire during start up that causes it to have hard starts.

86gxlsp

bumpity bump

86gxlsp

um......

rotarypower86

Mine does the same thing, and I just looked at my ECU, and part of it was burnt.

You could try checking that before you spend $60 on all the other stuff. I also have a new fuel filter spark plugs...

The ECU is below the passenger side carpet, if you didn't know.

86gxlsp

cool thanks man..il go and check that as soon as possible. how do i tell? was it burnt on the outside? or did you take it apart?

WonkoTheSane

iTrader: (2)

Peruvian Rx7 is probably on the right track.. I"d check with a fuel filter first. How long has it been since that's been changed? (that's a 5 dollar/10 minute job, especially with a fuel pump cut off switch)

Kenteth

I had the same prob last year. I did a tranny swap and repalced the fuel filter and a few various others. I still seemed to have the same problem. It was only after a bad flood though, so I assumed it was just misfiring due to pig-rich conditions after a flood episode.

Prior to replacing the fuel filter, however, there would be times that it felt like the car would misfire *TERRIBLE*. Like stomping on/off the gas would never get above 4krpm--almost sounding like its on one rotor, half firing. Holding it down would just choke/kill it.

Anyhow, we replaced the fuel filter like said above and that problem had since gone away. A few others came up, like a noticable surging aroun crusing 5k rpm. We figured it was the 6ports.

Then the tranny went out. Located 5spd driveline parts and am doing the swap. Decided to tune up the engine completely with exception to cracking it. Replaced all gaskets, hoses, and vac's. Removed nest, emisions, ect. The 6ports had been stuck closed for so long that the imprint/footprint of the port had been burnt into the aluminum.

Bought two used actuators and rigged em in. All I need now is a few weeks warm weather and another $600 and i'll be in the "highlife again"

86gxlsp

cool, i havent changed the fuel filter. iv had the car for three years but, i've only put on 22*** k's on it