NoMorePoison

iTrader: (1)

The vehicle in question is 1988 vert stock

I bought the car for 450 from a guy and drove it from salinas to seaside (about 40 minutes). It idles very rough, and when you take off from a light, the car bogs tremendously until you hit 4000 or so rpm. Its also misfiring a lot. Any ideas on where to begin? The plugs are fairly new, and so are the wires. But the 02 sensor hasnt been changed EVER and its got 112000 miles on the chassis. Could that be it? Included are two videos showing whats going on.

http://s119.photobucket.com/albums/o...t=MOV01105.flv

http://s119.photobucket.com/albums/o...t=MOV01104.flv

NoMorePoison

iTrader: (1)

.... Come on, nothing??

turboIIrotary

iTrader: (9)

first off your revving your car when cold which is stupid to do....

check your timing
check your tps make sure they are both in spec
o2 sensor would probably give you a little less gas mileage but thats it.

NoMorePoison

iTrader: (1)

Im not even revving it higher then the cold start does anyway. Would the TPS really make it misfire?

And its only hesistant when driving until I hit the secondaries, at ~3800 it smooths out and drives normal. I know on my fd when this happened it was because the vacuum line on the map sensor came off

corymarc.com

iTrader: (2)

Dont help this douche he ripped me off for $90.00. And hasnt responded to an email in 4 months.

j0rd4n

Ummm...your idle doesn't sound too rough, nor is it high. It starts at 3000rpm to help try to warm up the car more quickly.

hhn2002

backfire, bogs until secondaries = vac leak
look and hear for it.

Bama420

iTrader: (1)

Well, your problem is you're completely out of gas.

lol

Sorry, couldn't resist.

turboIIrotary

iTrader: (9)

yes a out of spec tps can make it hesitate maybe backfire also a vac leak can too check for these things and get back to us.

NoMorePoison

iTrader: (1)

Well I checked the TPS, and it looks good, and the only way I know to do a vac leak check is with starter fluid, and it turned up nothing so far. Is there any other way to check for a vac leak? And could it just be the primaries are really clogged?

NoMorePoison

iTrader: (1)

.....

NoMorePoison

iTrader: (1)

bump

dawicka2

Did you really rip corymarc off for $90.00?

NoMorePoison

iTrader: (1)

In all honesty, Im resolving the issue with paypal as we speak. Up until just recently I had zero access to a computer, because of the Air Force, so everything got all sorts of dicked up.

KompressorLOgic

iTrader: (6)

ive had a car where a primary injector went bad, and it would run lean and misfire on 1 rotor untill i hit 3800, then it would run fine.

NoMorePoison

iTrader: (1)

Thats where Im thinking this is heading. Ive tested the tps, the maf, no vac leaks, and fule injector cleaner is the only thing thats made a difference...

scrip7

iTrader: (6)

Do NOT use starting fluids, carb cleaner, or brake cleaner to check vacuum leaks. It's old school, and quite dangerous. Do this instead:

https://www.rx7club.com/showthread.p...idle+diagnosis

KompressorLOgic

iTrader: (6)

do u have a compression tester? u might want to do a check too while your at it. if it runs fine above 4K tho its prolly an injector tho. but just to be sure

re-rx7

iTrader: (3)

Iam not saying anything if you are a con. 4 months!!! come on.

corymarc.com

iTrader: (2)

Just wanted to update that I finally have recieved my full refund. Thanks to you guys. We only have each other to keep the rx-7 community honest.

As for the seller a simple email with in the 4 months would have been nice.

Good luck with your car.

88RXVERT

iTrader: (5)

By looking at the vid, it is 100% driver error. The problem is right under your foot.