Bucking, kicking, and screaming... Well sputtering...

Whizbang · 08-30-2009, 08:04 PM

stupid question, but have you looked for any loose wiring?

jerd_hambone · 08-30-2009, 08:12 PM

Not extensively, I've checked a few grounds and plugs, but not really searched.

I don't believe it's for the fuel pump, we changed the pump a while back and made sure everything was hooked up good.

Also have a question about an 87 NA and figured I'd post it in here so I don't clutter up the forum.

I got an offer to trade my Isuzu pickup to an 87 GXL and the guy said the intake actuator and vacuum check bulb need replaced.

As far as I can remember I've never heard of either needing replaced, could be wrong though.

Guy said it idles smooth, but won't rev, just sort of sputters. Car has 114k on the clock and has been doctor owned.

I'm going to check it out, but was wondering if you guys thought it might be worth it, because it's a pretty good drive.

JL1RX7 · 08-30-2009, 09:09 PM

for the 87 that might be just a bad ground! I have never heard of those on a rx7. They really are simple machines when it comes to whats on them.

jerd_hambone · 09-01-2009, 10:59 AM

I never heard of it either, but I'm not taking it.

The car is pretty busted up, inside and out.

Rx-7fetish · 09-02-2009, 07:23 PM

Had same symptoms then one day car died and would not start. Turns out sock fell off of the fuel pump and the pump and filter clogged up. Replaced both and ran like a champ

jerd_hambone · 09-03-2009, 09:08 PM

I'll check into it tomorrow for sure, as soon as I get an exhaust put on my truck.

The guy I got my truck off of decided to cut the cat and muffler off the truck, and never out a muffler back on.

nvno1 · 09-04-2009, 12:14 PM

Quote:

Originally Posted by jerd_hambone

I don't believe it's for the fuel pump, we changed the pump a while back and made sure everything was hooked up good..

Was the fuel pump OEM or from like autozone? Is it flooding/flooded now that it wont start? I buy napa parts as i bought a fuel pump from autozone and it failed like 3wks later and had similiar symptoms to what your having now.

jerd_hambone · 09-04-2009, 02:39 PM

Fuel pump is still going strong, its not flooding badly, but there is a slight smell of gas.

May be because of the O2 sensor.

NoDOHC · 09-09-2009, 08:18 PM

The O2 sensor is only used at steady-state cruise. Not when starting.

jerd_hambone · 09-10-2009, 05:00 PM

Hmm then it is running rich, not too bad, but a bit

Phoenix7 · 09-10-2009, 05:03 PM

Still waiting to hear about the TPS...did you ever get around to testing it/ looking for loose or broken harness, exposed wires.

jerd_hambone · 09-20-2009, 03:15 PM

The car has been running fine, and I'm in the process of doing body work and painting, so I've not even checked it out

Phoenix7 · 09-20-2009, 03:23 PM

wonder what it was.

NoDOHC · 09-20-2009, 08:12 PM

I just thought of something, could it be that he had a OMP Fault and it was going into limp mode?

jerd_hambone · 09-21-2009, 08:40 PM

I don't think it's going into limp mode. It keeps very good oil pressure, and all the OMP lines are fine.

I really think it's either the TPS or the fuel pump. I don't think it's the injectors because it doesn't flood out. It has zero problems hot or cold starting.

It only starts this problem every now and then. You will be driving, it starts to buck and sputter, then after you let it sit a few hours, you get in, try to rev and it sputters, then keep trying to rev and BLAM, problems gone.

Doesn't come back for a week or two.

Completely stumped here.

08-30-2009, 08:04 PM	#16
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	stupid question, but have you looked for any loose wiring? __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

09-09-2009, 08:18 PM	#24
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin iTrader: (1) Posts: 855 Rep Power: 17	The O2 sensor is only used at steady-state cruise. Not when starting. __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)

09-20-2009, 08:12 PM	#29
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin iTrader: (1) Posts: 855 Rep Power: 17	I just thought of something, could it be that he had a OMP Fault and it was going into limp mode? __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)

08-30-2009, 09:09 PM	#18
JL1RX7 Rotary Fanatic Join Date: Feb 2008 Location: Front Royal, VA iTrader: (1) Posts: 487 Rep Power: 17	for the 87 that might be just a bad ground! I have never heard of those on a rx7. They really are simple machines when it comes to whats on them.

09-02-2009, 07:23 PM	#20
Rx-7fetish Blue Blur Join Date: Jan 2009 Location: Windsor iTrader: (0) Posts: 211 Rep Power: 0	Had same symptoms then one day car died and would not start. Turns out sock fell off of the fuel pump and the pump and filter clogged up. Replaced both and ran like a champ