hesitation problem..

aero86 · 11-22-2005, 04:40 PM

just started on me today. i know that my fuel pump is good and so is my o2 sensor. anyway, let me describe what happened. drove to waco today from belton, about 35 miles. on the way home, i noticed some hesitation if i gave it more than 50% throttle. if im normally accelerating, its fine, but if i give it too much it will hesitate, then accelerate. could fouled plugs cause this? car has been running rich, which ive fixed, but maybe the fouled plugs caught up with me. i believe they are the platinum ones, not copper. anyone have any ideas?

blazinmr2 · 11-22-2005, 04:47 PM

fouled plugs could cause this, as well as a bad distributer cap and rotor, or it could be something completely different.

Weasy2k · 11-22-2005, 05:28 PM

igntiion system aka plugs...goto copper plugs vs platinum....or just clean them...

Fuel issue as well...what rich problem do you have?
Plugged cat as well could cause this...

Mister2.2 · 11-22-2005, 09:25 PM

plugs/cap/rotor or a bad wire... Also try cleaning your TB out with a good O2 sensor safe carb cleaner.

aero86 · 11-22-2005, 11:02 PM

hollow cat..it just ran rich on throttle. im gonna just replace them with copper. i know that the cap and rotor and wires are as old as the motor swap, about 12,000 miles.

Weasy2k · 11-23-2005, 10:15 AM

try the plugs...work your way around things if that doesnt work post abck here

aero86 · 11-29-2005, 07:02 PM

copper champions seem to have worked. plugs seemed pretty fouled.

Weasy2k · 11-30-2005, 08:47 PM

good

now replace them every 8k ish

or every other oil change like i do..copper is great but dont last as long

11-22-2005, 04:40 PM	#1 (permalink)
aero86 No Skills Join Date: Mar 2005 Posts: 39 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	hesitation problem.. just started on me today. i know that my fuel pump is good and so is my o2 sensor. anyway, let me describe what happened. drove to waco today from belton, about 35 miles. on the way home, i noticed some hesitation if i gave it more than 50% throttle. if im normally accelerating, its fine, but if i give it too much it will hesitate, then accelerate. could fouled plugs cause this? car has been running rich, which ive fixed, but maybe the fouled plugs caught up with me. i believe they are the platinum ones, not copper. anyone have any ideas?

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11-22-2005, 04:47 PM	#2 (permalink)
blazinmr2 Resident guitar shredder Join Date: Oct 2005 Location: Pella, Ia Posts: 781 Thanks: 0 Thanked 4 Times in 2 Posts iTrader Rating: (0/0% )	fouled plugs could cause this, as well as a bad distributer cap and rotor, or it could be something completely different.

11-22-2005, 05:28 PM	#3 (permalink)
Weasy2k What is an MR2? Join Date: Mar 2005 Location: Vancouver, BC Posts: 8,891 Thanks: 33 Thanked 82 Times in 68 Posts iTrader Rating: (9/100% )	igntiion system aka plugs...goto copper plugs vs platinum....or just clean them... Fuel issue as well...what rich problem do you have? Plugged cat as well could cause this...

11-22-2005, 09:25 PM	#4 (permalink)
Mister2.2 Cheese it! Join Date: Feb 2005 Posts: 6,561 Thanks: 121 Thanked 115 Times in 99 Posts Blog Entries: 1 My Google Map iTrader Rating: (3/100% )	plugs/cap/rotor or a bad wire... Also try cleaning your TB out with a good O2 sensor safe carb cleaner.

11-22-2005, 11:02 PM	#5 (permalink)
aero86 No Skills Join Date: Mar 2005 Posts: 39 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	hollow cat..it just ran rich on throttle. im gonna just replace them with copper. i know that the cap and rotor and wires are as old as the motor swap, about 12,000 miles.

11-23-2005, 10:15 AM	#6 (permalink)
Weasy2k What is an MR2? Join Date: Mar 2005 Location: Vancouver, BC Posts: 8,891 Thanks: 33 Thanked 82 Times in 68 Posts iTrader Rating: (9/100% )	try the plugs...work your way around things if that doesnt work post abck here

11-29-2005, 07:02 PM	#7 (permalink)
aero86 No Skills Join Date: Mar 2005 Posts: 39 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	copper champions seem to have worked. plugs seemed pretty fouled.

11-30-2005, 08:47 PM	#8 (permalink)
Weasy2k What is an MR2? Join Date: Mar 2005 Location: Vancouver, BC Posts: 8,891 Thanks: 33 Thanked 82 Times in 68 Posts iTrader Rating: (9/100% )	good now replace them every 8k ish or every other oil change like i do..copper is great but dont last as long