Hard Start, rough idle, bogs when floored..... - Toyota Nation Forum : Toyota Car and Truck Forums
1st & 2nd Generation (19831986 & 1987-1991) Toyota Camry Discussion for years: 1983-1986 & 1987-1991. Topics of discussion range from fuel economy, safety, modifications, performance all involving America's favorite family car, the Toyota Camry.

LinkBack Thread Tools Display Modes
post #1 of 2 Old 08-03-2008, 12:11 AM Thread Starter
New TN User
Join Date: Jul 2008
Location: Florida
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
Hard Start, rough idle, bogs when floored.....

90 V6 CAMRY.... I must of "installed" this problem while doing a tune up trying to get better mileage and power.

I replaced the air filter and fuel filter last weekend with no noticeable improvement in MPG or power.

During the week I noticed the exhaust smelled more like straight gasoline than exhaust and found I had 2 cylinders not firing (pulled the plug wires and no change in idle), so today I replaced the plugs and wires.... I didn't change the distributor cap and rotor, but I pulled them and inspected them... they looked almost new and checked out good with an ohm meter.

Since it's a V6, I had to pull of the intake plenum/throttle body to get at the back plugs .... so in turn I had to disconnect the throttle linkages, a bunch of vacuum lines, cold start injector supply, ISC and TPS connectors etc... I checked and rechecked everything before I fired her up and when I did crank her, she started great and responded well to throttle!! She was idling maybe a little high, but I thought that might have been because the ECU had been compensating for the non-firing cylinders.

I let her run and warm up (maybe 15 minutes) while I cleaned up and put my tools away (hahaha jokes on me I should have left the tools out). On the road test, she seemed like a new car for the first few minutes, but then I started noticing the power dropping off. I pulled over and she stalled but restarted and idled, but not right (sometimes fairly smooth but sometimes up and down- almost to a stall then a surge then settle out or not). When I apply the throttle gently, she'll rev up, but if I go wide open throttle she starts to sputter and bog down.... This happens in Park and Neutral as well as Drive.

There is no CEL and no soft codes when I jump Te1 and E1 (steady all normal flash). I'm getting good spark through all the wires and when she is at idle I smell no gas in the exhaust, so I don't THINK it's an ignition issue. I rechecked all my vacuum lines and didn't find anything obvious. I pulled my EGR valve off, made a block plate out of a tin can and bolted the EGR back up with the plate installed..... No change, so I left it for now. I also pulled the PCV hose of the intake let it vent to the air and blocked the intake vacuum port, also no change.

I think I'm going to use my propane torch to sniff around for vacuum leaks next, then I'm going to look around in the fuel delivery areas.... I did notice that when I put the AC on the RPM's increase, so the VSV is apparently doing it's thing with the fuel pressure regulator. BTW when I replaced the fuel filter, I made sure the banjo bolt holes lined up with the output fuel line.

Anyway, sorry for the long post, but I guess the more info I give the better. I appreciate any ideas.

phil2810 is offline  
Sponsored Links
post #2 of 2 Old 08-03-2008, 08:58 AM
Senior TN Member
Doctor J's Avatar
Join Date: Apr 2006
Location: Long Beach, California
Posts: 3,113
Mentioned: 4 Post(s)
Tagged: 1 Thread(s)
Quoted: 64 Post(s)
Thanks: 16
Thanked 193 Times in 178 Posts
iTrader Score: 0 reviews
I would suggest to inspect all wiring connections first.[AFM, TP sensor}
Doctor J is offline  
Sponsored Links

  Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Passenger and Sports Car Forums > Camry and Solara Forum > 1st & 2nd Generation (19831986 & 1987-1991)

Gear in this thread - Powered by O'Reilly Auto Parts

Quick Reply

Register Now

In order to be able to post messages on the Toyota Nation Forum : Toyota Car and Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome