 Is this a tuning issue? |
 Mar 30, 2008 - 12:11 AM
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 Enthusiast  Joined Jan 29, '07 From Hoyt Lakes, MN Currently Offline Reputation: 11 (100%)  |
I've had my car tuned twice and will get it tuned a 3rd time when I come around to getting the water injection kit. Well since the tune, I'll be cruising like normal and the car jerks. My rpms don't drop or anything, but the car just jerks. Is this caused by the spark plugs at all? Could this be an electrical issue?
O yeah, I get a lot of back fire too. Everytime I down shift and sometimes when I slow down in gear. Now what is this caused by? -------------------- 98 Celica gt red- totaled deer
94 Celica st black DD (bad weather beater)- totaled deer 95 Celica gt silver- chassis sold 88 Celica All-Trac (Burned to a crisp) 94 Celica gt white (sold) In need of a rust free chassis!!!! |
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Replies
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Apr 1, 2008 - 4:04 PM
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 Enthusiast Joined May 12, '06 From Wilmington, NC Currently Offline Reputation: 45 (100%) |
what exactly causes the jerking? Is it that the SAFC is altering the MAP sensor signal so much that the ECU thinks you are decellerating and shuts off the injectors like it does during decelleration? cause when mine bogs I see my wideband go way lean (too lean to register a number) like it does during decelleration. that's my theory.
--------------------  94 GT - Sold -------- 69 Pontiac Lemans - Sold 88 Alltrac - Sold ---- 04 WRX - Sold 00 GT-S - Sold ------ 91 Miata - project/drift car 95 GT - Sold -------- 96 GT - New Daily Drive |
Posts in this topic
bccentaur3 Is this a tuning issue? Mar 30, 2008 - 12:11 AM
lagos Part of the problem is that the safc is not very g... Mar 30, 2008 - 12:45 AM bccentaur3 Thanks for the fast reply. I guess I will save up ... Mar 30, 2008 - 1:17 AM lagos you kind of want both so that you can monitor and ... Mar 30, 2008 - 1:26 AM FunkySR QUOTE(lagos @ Mar 30, 2008 - 6:45 AM... Mar 30, 2008 - 6:27 AM lagos QUOTEcause when mine bogs I see my wideband go way... Apr 1, 2008 - 8:28 PM bccentaur3 well am I actually suppose to have a low throttle ... Apr 1, 2008 - 8:39 PM rjbibeau did MAP use a wideband with your tune Will? Apr 1, 2008 - 9:03 PM bccentaur3 Yeah they did. But I have also been told that thei... Apr 2, 2008 - 10:27 AM
presure2 QUOTE(bccentaur3 @ Apr 2, 2008 - 11... Apr 2, 2008 - 5:05 PM bccentaur3 So do you have a wideband to tune with? Apr 2, 2008 - 7:23 PM presure2 QUOTE(bccentaur3 @ Apr 2, 2008 - 8:2... Apr 2, 2008 - 8:15 PM rjbibeau ohh ya rotten egg smell Apr 2, 2008 - 8:21 PM bccentaur3 Manny, you're a funny guy... NOT!!... Apr 2, 2008 - 8:26 PM rjbibeau he's got the nose of a wideband! Apr 2, 2008 - 8:27 PM |
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