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Question
my toyota pickup ( 4 x 4 ) with 22re motor has an idling prob. after it warms, it starts surging at idle, and when i push the brake pedal, it steadies but idles way to fast. Driving o the hiway it runs great. Also, when driving slow thru parking lots, it is jerky when i let off and give gas. I replaced the TPS and EGR valve but that didn't help. Any ideas?
Submitted: 58 days and 22 hours ago.
Category: Car
Value: $23
Status: CLOSED
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Optional Information
Year: 1989
Make: Toyota
Model: 4 x 4 pickup truck
Engine: 22RE
Already Tried:
i replaced the EGR valve, and the Throttle position sensor. It ran fine just after smog test , they cleaned the EGR valve at that time. Tuning the distributor doesn't make any difference to the idling, neither, for some reason.I suspect the Mass air flow sensor now, but don't want to keep buying parts to fix it by elemination process. Thanks for your help.
Posted by
SEAN
58 days and 22 hours ago.
Info Request
WHAT YEAR,MODEL AND IS IT AUTO?
58 days and 22 hours ago.
Reply
1989 Toyota 4 x 4 pickup truck 5 speed trans
Accepted Answer
<table border="0" cellspacing="0" cellpadding="0" width="100%"><tbody><tr><td valign="top">Customer Concern:</td><td>Surges at idle when you step on the brakes. </td></tr><tr><td valign="top">Tests/Procedures:</td><td>1. With the vehicle fully warmed up and the idle speed surging up and down, block the fast idle valve in the throttle body with your finger to see if the idle speed drops down. <br /><br />2. Check the coolant flow through the fast idle valve to make sure there are no restrictions. <br /><br />3. Block the fast idle valve port and the idle air bypass port, the vehicle should die. <br /><br />4. Verify the base idle is set correctly, </td></tr></tbody></table>
Expert:
SEAN
Pos. Feedback:
95.6 %
Accepts:
Answered:
9/24/2009
ASE Certified Technician
ASE MASTER TECHNICIAN,30 YRS EXPERIENCE
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